UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-Q

           |X| QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                  For the quarterly period ended April 2, 1999

          |_| TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                        Commission File Number: 0-220-20

                                    CASTELLE
             (Exact name of Registrant as specified in its charter)

           California                                   77-0164056
(State or other jurisdiction of            (IRS Employer Identification No.)
 incorporation or organization)

              3255-3 Scott Boulevard, Santa Clara, California 95054
          (Address of principal executive offices, including zip code)

                                 (408) 496-0474
              (Registrant's telephone number, including area code)

        Securities registered pursuant to Section 12(b) of the Act: NONE

Securities registered pursuant to Section 12(g) of the Act: COMMON STOCK, 
                                                            NO PAR VALUE

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  Registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days. Yes |X| No __

The  number  of  shares  of  Common  Stock  outstanding  as of May 10,  1999 was
4,685,435.







                                    CASTELLE
                                    FORM 10-Q
                                TABLE OF CONTENTS



                                                                                                     PAGE


PART I.    FINANCIAL INFORMATION

     Item 1.    Financial Statements:

                                                                                                   
                Consolidated Balance Sheets                                                             2

                Consolidated Statements of Income                                                       3

                Consolidated Statements of Cash Flows                                                   4

                Notes to Consolidated Financial Statements                                              5


     Item 2.    Management's Discussion and Analysis of Financial Condition
                and Results of Operations                                                               8


PART II.   OTHER INFORMATION

     Item 1.    Legal Proceedings                                                                      14

     Item 2.    Changes in Securities                                                                  14

     Item 3.    Quantitative and Qualitative Disclosure about Market Risk                              14

     Item 4.    Submission of Matters to a Vote of Security Holders                                    14

     Item 5.    Other Information                                                                      14

     Item 6.    Exhibits and Reports on Form 8-K                                                       14

                Signatures                                                                             15

                Exhibit 27.1 - Financial Data Schedule                                                 E-1

                Exhibit 99.1 - Press Release dated April 13, 1999                                      E-2


    
                                        1




                         PART I - FINANCIAL INFORMATION

ITEM 1.    FINANCIAL STATEMENTS



                            CASTELLE AND SUBSIDIARIES
                           CONSOLIDATED BALANCE SHEETS
                                 (in thousands)

                                                                       April 2, 1999        December 31, 1998
                                                                        (unaudited)             (audited)
                                                                  ----------------------  ---------------------
Assets:
   Current assets:
                                                                                                  
     Cash and cash equivalents                                              $  4,235               $  3,924
     Restricted cash                                                             125                    125
     Accounts receivable, net of allowance for doubtful accounts
        of $344 in 1999 and $720 in 1998                                       2,678                  3,472
     Inventories, net                                                          3,051                  3,739
     Prepaid expense and other current assets                                    459                    398
                                                                  ----------------------  ---------------------
        Total current assets                                                  10,548                 11,658
   Property, plant & equipment, net                                              611                    666
   Other non-current assets, net                                                 129                    170
                                                                  ----------------------  ---------------------
        Total assets                                                       $  11,288              $  12,494
                                                                  ======================  =====================

Liabilities & Shareholders' Equity:
   Current liabilities:
     Long-term debt, current                                                 $    96                $    96
     Accounts payable                                                          2,456                  2,084
     Accrued liabilities                                                       2,556                  2,715
                                                                  ----------------------  ---------------------
        Total current liabilities                                              5,108                  4,895
   Other long-term liabilities                                                    75                     98
                                                                  ----------------------  ---------------------
        Total liabilities                                                      5,183                  4,993
                                                                  ----------------------  ---------------------

   Shareholders' equity:
     Common stock, no par value:
        Authorized:  25,000 shares
        Issued and outstanding: 4,346 and 4,337 respectively                  29,270                 29,255
     Note receivable for purchase of common stock                               (274)                  (274)
     Deferred compensation                                                      (120)                  (120)
     Accumulated deficit                                                     (22,771)               (21,360)
                                                                  ----------------------  ---------------------
        Total shareholders' equity                                             6,105                  7,501
                                                                  ----------------------  ---------------------
        Total liabilities & shareholders' equity                           $  11,288              $  12,494
                                                                  ======================  =====================



The accompanying notes are an integral part of these consolidated financial 
statements.

                                       2





                            CASTELLE AND SUBSIDIARIES
                        CONSOLIDATED STATEMENTS OF INCOME
                    (in thousands, except per share amounts)
                                   (unaudited)

                                                                              First Fiscal Quarter
                                                                               Three months ended
                                                                      ......................................
                                                                         April 2, 1999       April 3, 1998
                                                                      ------------------  ------------------

                                                                                               
   Net sales                                                                 $ 4,468             $ 6,601
   Cost of sales                                                               2,849               3,101
                                                                      ------------------  ------------------
       Gross profit                                                            1,619               3,500
                                                                      ------------------  ------------------

   Operating expenses:
       Research and development                                                  684                 650
       Sales and marketing                                                     1,854               2,132
       General and administrative                                                459                 479
       Amortization of intangible assets                                          40                  --
                                                                      ------------------  ------------------
          Total operating expenses                                             3,037               3,261
                                                                      ------------------  ------------------
   Income (loss) from operations                                              (1,418)                239

       Interest income, net                                                       30                  57
       Other income (expense), net                                               (23)                  8
                                                                      ------------------  ------------------
   Income (loss) before provision for income taxes                            (1,411)                304
       Provision for income taxes                                                 --                 121
                                                                      ------------------  ------------------
   Net income (loss)                                                         $(1,411)              $ 183
                                                                      ==================  ==================

   Earnings per share:
      Net income (loss) per common share - basic                             $ (0.33)             $ 0.04
      Shares used in per share calculation - basic                             4,340               4,493

      Net income (loss) per common share - diluted                           $ (0.33)             $ 0.04
      Shares used in per share calculation - diluted                           4,340               4,639


 

The accompanying notes are an integral part of these consolidated financial 
statements.

                                        3







                            CASTELLE AND SUBSIDIARIES
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (in thousands)
                                   (unaudited)

                                                                              First Fiscal Quarter
                                                                               Three months ended
                                                                      ......................................
                                                                         April 2, 1999       April 3, 1998
                                                                      ------------------  ------------------
   Cash flows from operating activities:
                                                                                               
      Net income (loss)                                                      $(1,411)             $  183
      Adjustment to reconcile net income to net cash provided by
         operating activities:
        Depreciation and amortization                                            158                 127
        Provision for doubtful accounts and sales returns                       (677)                 81
        Provision for excess and obsolete inventory                              878                  35
        Compensation expense related to grant of stock options                    13                  --
        Changes in assets and liabilities:
         Accounts receivable                                                   1,471                (789)
         Inventories                                                            (190)              1,037
         Prepaid expenses and other current assets                               (61)                (95)
         Accounts payable                                                        372                (192)
         Accrued liabilities and other long-term liabilities                    (159)                174
                                                                      ------------------  ------------------
           Net cash provided by operating activities                             394                 561
                                                                      ------------------  ------------------

   Cash flows from investing activities:
      Acquisition of property and equipment                                      (57)                (44)
      Increase in other assets                                                    (5)                 --
                                                                      ------------------  ------------------
           Net cash used in investing activities                                 (62)                (44)
                                                                      ------------------  ------------------

   Cash flows from financing activities:
      Proceeds from notes payable                                                 --                 142
      Repayment of notes payable                                                 (23)                (21)
      Proceeds from issuance of common stock and warrants, net of
        repurchases                                                                2                   6
                                                                      ------------------  ------------------
           Net cash provided by (used in) financing activities                   (21)                127
                                                                      ------------------  ------------------


   Net increase in cash and cash equivalents                                     311                 644

   Cash and cash equivalents at beginning of period                            3,924               6,204
                                                                      ------------------  ------------------
   Cash and cash equivalents at end of period                                $ 4,235             $ 6,848
                                                                      ==================  ==================



The accompanying notes are an integral part of these consolidated financial 
statements.

                                       4



                            CASTELLE AND SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                   (unaudited)


1.   Basis of Presentation:

     The accompanying  unaudited  consolidated  financial statements include the
     accounts  of  Castelle  and its  wholly  owned  subsidiaries  in the United
     Kingdom and the  Netherlands,  and have been  prepared in  accordance  with
     generally accepted  accounting  principles.  All intercompany  balances and
     transactions  have been  eliminated.  In the  opinion  of  management,  all
     adjustments  (consisting of normal recurring accruals) considered necessary
     for a fair  presentation of the Company's  financial  position,  results of
     operations  and cash flows at the dates and for the periods  indicated have
     been included. The result of operations for the interim period presented is
     not necessarily  indicative of the results for the year ending December 31,
     1999.  Because  all of  the  disclosures  required  by  generally  accepted
     accounting  principles  are not included in the  accompanying  consolidated
     financial  statements and related notes, they should be read in conjunction
     with the  audited  consolidated  financial  statements  and  related  notes
     included in the Company's Form 10-K for the fiscal year-ended  December 31,
     1998.

2.   Net Income (Loss) Per Share

     Basic net income (loss) per share is computed by dividing net income (loss)
     available to common  shareholders by the weighted  average number of common
     shares outstanding for that period.  Diluted net income (loss) per share is
     computed  giving effect to all dilutive  potential  common shares that were
     outstanding  during  the  period.  Dilutive  potential  shares  consist  of
     incremental  common  shares  issuable  upon  exercise of stock  options and
     warrants.


     Basic and diluted  earnings per share are  calculated  as follows for first
     quarters of 1999 and 1998:



                                                          (in thousands,
                                                    except per share amounts)
                                                   .............................
                                                     April 2,       April 3,
                                                       1999           1998
                                                   -------------- --------------
Basic:
                                                                   
   Weighted average common shares outstanding          4,340           4,493
                                                   =============  ==============
   Net income (loss)                                $ (1,411)          $ 183
                                                   =============  ==============
   Net income (loss) per common share - basic        $ (0.33)          $0.04
                                                   =============  ==============

Diluted:
   Weighted average common shares outstanding          4,340           4,493
   Common equivalent shares from stock options            --             146
                                                   -------------  --------------
   Shares used in per share calculation - diluted      4,340           4,639
                                                   =============  ==============
   Net income (loss)                                $ (1,411)          $ 183
                                                   =============  ==============
   Net income (loss) per common share - diluted      $ (0.33)          $0.04
                                                   =============  ==============

                                       5

     The calculation of diluted shares outstanding at April 2, 1999 and April 3,
     1998 excludes 1,532,000 and 978,000 stock options,  respectively,  as their
     effect was antidilutive in the period.

3.   Inventories:

     Inventories  are stated at the lower of standard  cost (which  approximates
     cost on a  first-in,  first-out  basis) or market and net of  reserves  for
     excess and obsolete inventory. Inventory details are as follows:

                                                     (in thousands)
                                               .................................
                                                   April 2,       December 31,
                                                     1999             1998
                                               ---------------------------------
     Raw material                                   $ 754          $ 1,282
     Work in process                                  205              130
     Finished goods                                 2,092            2,327
                                               ---------------------------------
                  Total Inventory                  $ 3,051         $ 3,739
                                               =================================

4.   Revenue Recognition:

     Product revenue is recognized  upon shipment if a signed  contract  exists,
     the fee is fixed and determinable,  collection of the resulting receivables
     is probable  and  product  returns are  reasonably  estimable.  The Company
     enters  into  agreements  with  certain of its  distributors  which  permit
     limited  stock  rotation  rights.  These stock  rotation  rights  allow the
     distributor  to return  products  for credit but  require  the  purchase of
     additional  products of equal  value.  Revenues  subject to stock  rotation
     rights are reduced by  management's  estimates  of  anticipated  exchanges.
     Provisions for estimated  warranty costs and anticipated  retroactive price
     adjustments  are recorded at the time  products  are  shipped.  The Company
     recognizes  revenue from the sale of extended  warranty  contracts  ratably
     over the period of the contracts.


5.   Segments Disclosure:

     The Company has adopted  SFAS No.  131,  "Disclosure  about  Segments of an
     Enterprise  and Related  Information,"  which is effective for fiscal years
     beginning  after December 31, 1997.  SFAS No. 131  supersedes  SFAS No. 14,
     "Financial  Reporting for Segments of a Business  Enterprise." SFAS No. 131
     changes current  practice under SFAS No. 14 by establishing a new framework
     on which to base segment reporting and introduces  requirements for interim
     reporting of segment  information.  The Company has determined that it uses
     one measurement of profitability of its business for internal reporting.

6.   Comprehensive Income:

     Castelle has adopted the  provisions  of Statement of Financial  Accounting
     Standards No. 130, "Reporting  Comprehensive  Income," effective January 1,
     1998. This statement  requires the disclosure of  comprehensive  income and
     its  components  in a full  set of  general-purpose  financial  statements.
     Comprehensive  income is the change in equity from  transactions  and other
     events and  circumstances  other than those  resulting from  investments by
     owners and distributions to owners. There are no significant  components of
     comprehensive  income  excluded  from net  income,  therefore,  no separate
     statement of comprehensive income has been presented.

                                       6

7.   New accounting pronouncements:

     In  June of  1998,  the  FASB  issued  Statement  of  Financial  Accounting
     Standards  No. 133,  "Accounting  for  Derivative  Instruments  and Hedging
     Activities,"  which  establishes  accounting  and  reporting  standards for
     derivative  instruments,  and for hedging  activities.  It requires that an
     entity  recognize all  derivatives  as either assets or  liabilities in the
     statement of financial  position and  measures  those  instruments  at fair
     value.  Management  has not yet evaluated the effects of this change on its
     operations.  The Company  will adopt SFAS No. 133 as required for its first
     quarterly filing of fiscal 2000.

     In December 1998, the Accounting  Standards  Executive  Committee ("AcSEC")
     released Statement of Position 98-9 ("SOP 98-9"), Modification of SOP 97-2,
     "Software Revenue Recognition," with Respect to Certain  Transactions.  SOP
     98-9  amends  SOP 97-2 to  require  that an entity  recognize  revenue  for
     multiple  element  arrangements by means of the "residual  method" when (1)
     there is vendor-specific  objective evidence ("VSOE") of the fair values of
     all the  undelivered  elements  that  are not  accounted  for by  means  of
     long-term  contract  accounting,  (2) VSOE of fair value does not exist for
     one or more of the  delivered  elements,  and (3) all  revenue  recognition
     criteria of SOP 97-2 (other than the requirement for VSOE of the fair value
     of each delivered element) are satisfied.

     The  provisions of SOP 98-9 that extend the deferral of certain  paragraphs
     of SOP 97-2 became  effective  December 15, 1998.  These  paragraphs of SOP
     97-2 and SOP 98-9 will be effective for transactions  that are entered into
     in fiscal years beginning after March 15, 1999. Retroactive  application is
     prohibited.  The Company is evaluating the requirements of SOP 98-9 and the
     effects, if any, on the Company's current revenue recognition policies.


8.   Subsequent Events:

     In April 1998, the Company  completed its  acquisition of the Object-Fax NT
     product line, a facsimile  software  application  designed for LAN's, WAN's
     and  Internet-based   networks,   from   Tolvusamskipti  HF,  an  Icelandic
     corporation,  in exchange for $300,000 in cash,  100,000 shares of Castelle
     common stock and the right to receive either  additional cash or the number
     of  shares  of  Castelle  common  stock on the date six  months  after  the
     acquisition necessary to make the fair market value of the common stock and
     additional cash received in the  transaction not less than $500,000.  Since
     the value of the Castelle common stock received in the transaction was less
     than  $500,000  on the date six months  after the  acquisition,  additional
     339,560 shares of Castelle Common Stock were issued to Tolvusamskipti HF on
     April 9, 1999.


                                       7




ITEM 2.     MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND 
            RESULTS OF OPERATIONS

This Management's  Discussion and Analysis contains  forward-looking  statements
that involve risks and  uncertainties.  Such  forward-looking  statements may be
deemed to the  adequacy  of  anticipated  sources of cash to fund the  Company's
future  capital  requirements  through  March  31,  2000,  and the  costs of the
Company's Year 2000 compliance  efforts and dates by which the Company  believes
it  will  complete  such  efforts.  Words  such  as  "believes,"  "anticipates,"
"expects,"   "intends"  and  similar   expressions   are  intended  to  identify
forward-looking  statements, but are not the exclusive means of identifying such
statements.  Readers are cautioned that the  forward-looking  statements reflect
management's  analysis  only as of the date hereof,  and the Company  assumes no
obligation  to update  these  statements.  Actual  events or results  may differ
materially from the results discussed in the forward-looking statements. Factors
that might cause such a difference include, but are not limited to the risks and
uncertainties  discussed  herein,  as well as other  risks set  forth  under the
caption  "Risk  Factors"  in the  Company's  Annual  Report on Form 10-K for the
fiscal year ended December 31, 1998. The following  discussion should be read in
conjunction with the Financial Statements and the Notes thereto included in Item
1 of this  Quarterly  Report on Form 10-Q and in the Company's Form 10-K for the
fiscal year ended December 31, 1998.





        Consolidated Statements of Income - As a Percentage of Net Sales

                                                                           FIRST FISCAL QUARTER
                                                                            THREE MONTHS ENDED
                                                                   ......................................
                                                                     April 2, 1999        April 3, 1998
                                                                   -----------------   ------------------

                                                                                            
   Net sales                                                                100%                 100%
   Cost of sales                                                             64%                  47%
                                                                   -----------------   ------------------
       Gross profit                                                          36%                  53%
                                                                   -----------------   ------------------

   Operating expenses:
       Research and development                                              15%                  10%
       Sales and marketing                                                   42%                  32%
       General and administrative                                            10%                   7%
       Amortization of intangible assets                                      1%                   --
                                                                   -----------------   ------------------
          Total operating expense                                            68%                  49%
                                                                   -----------------   ------------------
   Income (loss) from operations                                            (32%)                  4%

       Interest income, net                                                   1%                   1%
       Other income (expense), net                                           (1%)                  0%
                                                                   -----------------   ------------------
   Income (loss) before provision for income taxes                          (32%)                  5%
       Provision for income taxes                                             --                   2%
                                                                   -----------------   ------------------
   Net Income (loss)                                                        (32%)                  3%
                                                                   =================   ==================


                                       8



Results of Operations

     Net Sales

              Net sales for the first quarter of 1999  decreased to $4.5 million
     from $6.6 for the same period in 1998.  The  reduction in net sales was the
     result of a $1.2 million (53%) decrease in print server  product sales,  as
     well as, $0.9 million  (22%)  decrease in sales of the Company's fax server
     products to distributors  to maintain  manageable  inventory  levels in the
     channel.

              International sales in the first quarter of 1999 decreased to $1.7
     million from $2.8 million for the same period in 1998, representing 37% and
     42%,  respectively,  of total net sales.  This 41% decline in international
     sales was  mainly the result of  reduced  demand  for the  Company's  print
     server products in Asia.

     Gross Profit

              Gross profit of 36% for the first quarter of fiscal 1999 decreased
     compared to gross  profit of 53% for the same period in 1998.  The decrease
     in fiscal 1999 gross  profit is  primarily  attributable  to an  additional
     $880,000 excess inventory  provision recorded in the first quarter of 1999.
     This  provision is mainly  associated  with excess  print  server  products
     targeted  for the Asian  market  and fax  server  products  expected  to be
     replaced by newly introduced FaxPress models.

     Research & Development

              Research and product  development  expenses  increased slightly to
     $684,000  or 15% of net sales for the first  quarter of 1999 as compared to
     $650,000 or 10% of net sales for the same period in 1998.  The increase was
     due to the  additional  engineering  costs related to Object-Fax NT product
     line which was acquired in April 1998.

     Sales & Marketing

              Sales and marketing expenses were $1.9 million or 42% of net sales
     for the first  quarter of 1999,  as compared to $2.1  million or 32% of net
     sales for the same period in 1998.  The  reduction  of sales and  marketing
     expenses is associated  with lower sales  personnel  costs and  advertising
     expenses in the distribution channel.

     General & Administrative

               General and  administrative  expenses were $459,000 or 10% of net
     sales for the first  quarter of 1999,  as compared to $479,000 or 7% of net
     sales for the same period in 1998.

     Amortization of intangible assets

              Expenses for amortization of intangible  assets were $40,000 or 1%
     of net sales for the first  quarter  of 1999.  This  expense  reflects  the
     amortization  of intangible  assets for the  acquisition  of the Object-Fax
     products in 1998.

                                       9



     Interest & Other income/expense, net

              Interest  and  other  income/expenses,  net,  comprised  income of
     $7,000 for the first  quarter of 1999,  as compared to income of $65,000 or
     1% of net sales for the same period in 1998.  This  reduction  in income is
     the result of lower interest earned on the Company's investments.


Liquidity and Capital Resources

         Since  its  inception  in 1987,  Castelle  has  funded  its  operations
primarily  through the sale of capital stock and bank debt. As of April 2, 1999,
the Company had $4.2 million of cash and cash equivalents,  up from $3.9 million
at December 31, 1998. Working capital decreased to $5.4 million at April 2, 1999
from  $6.8  million  at  December  31,  1998.  The  increase  in cash  and  cash
equivalents  is primarily  due to cash derived from  collection  of  outstanding
accounts receivable balances,  partially off-set by the net loss incurred during
the first quarter of 1999.

         The Company has a $3.0 million secured  revolving line of credit with a
bank,  which  expires in March 17,  2000 and at April 2, 1999 had no  borrowings
under the line of credit.

         In  December  1997,  the  Company  entered  into  a loan  and  security
agreement with a finance company for an amount of $288,000. The amounts borrowed
are subject to interest  of 10.11%,  are  repayable  by December  2000,  and are
partially  collateralized  by a  certificate  of deposit of  $125,000,  which is
classified as restricted  cash on the Company's  balance  sheet.  As of April 2,
1999, the outstanding balance of the loan under the agreement was $171,000.

         As of April 2, 1999, net accounts  receivable  were $2.7 million,  down
from $3.5 million at December 31, 1998. The decrease in net accounts  receivable
is  attributed  to  improved  collection  of  outstanding  balances in the first
quarter of 1999, which resulted in an improvement in days sales outstanding from
87 at the end of 1998 to 54 days at April 2, 1999.

         Net  inventories as of April 2, 1999 were $3.1 million,  down from $3.7
million at  December  31,  1998.  The  decrease  was mainly  attributable  to an
additional  $880,000 excess inventory provision recorded in the first quarter of
1999.  This  provision is mainly  associated  with excess print server  products
targeted for the Asian market and fax server products expected to be replaced by
newly introduced FaxPress models.

         The Company had not made any material  capital  commitments  during the
first quarter ended April 2, 1999.

         Although  the Company  believes  that its existing  capital  resources,
anticipated  cash flows from  operations  and available  lines of credit will be
sufficient to meet its capital requirements at least through the next 12 months,
the Company may be required to seek  additional  equity or debt  financing.  The
timing and amount of such capital requirements cannot be determined at this time
and will  depend on a number of  factors,  including  demand  for the  Company's
existing and new products and the pace of technological change in the networking
industry.  There can be no  assurance  that such  additional  financing  will be
available on satisfactory terms when needed, if at all.

         Management believes that, for the periods presented,  inflation has not
had a material effect on the Company's operations.
  

                                     10

Year 2000 Compliance

         The  Company  has  completed  a  comprehensive  review of its  business
applications,  computer systems and  infrastructure  and products.  In addition,
Castelle  is in the  process of  conducting  a  comprehensive  review of its key
business partners to identify those that could be adversely affected by the Year
2000  issue  and is  developing  and  implementing  a  plan  to  resolve  issues
identified. The Year 2000 issue refers to the inability of many computer systems
to process  accurately  dates later than  December 31, 1999.  Date codes in many
programs are  abbreviated  to allow only two digits for the year,  e.g. "98" for
the year 1998.  Unless  these  programs  are modified to handle the century date
change, they will likely interpret the year "00", that is, the year 2000, as the
year 1900.  The Year 2000 issue  creates  risk for the Company  from  unforeseen
problems in its own  computer  systems as well as in  computer  systems of third
parties  with whom the Company  does  business  worldwide,  including  banks and
credit processing entities, factories, customers and others.

     Business Applications, Computer Systems and Infrastructure

              Castelle has completed a comprehensive review and inventory of its
     business  applications and computer systems,  including servers and network
     infrastructure,  to insure that they are Year 2000 compliant.  To date, the
     Company has installed and/or upgraded all computer network file servers and
     infrastructure (hubs, switches,  modems and access devices) to hardware and
     software  that is  certified to be Year 2000  compliant by its vendors.  In
     addition,  Castelle's main business  application  from Computer  Associates
     International,  Inc. (Computer Associates) has been upgraded to a Year 2000
     compliant  version as  certified  by Computer  Associates.  The Company has
     substantially  completed  an  upgrade  of all  desktop  (including  laptop)
     computers to Microsoft NT software  certified by Microsoft  Corporation  as
     Year 2000  compliant.  The Company  presently  believes  that the Year 2000
     issue will not pose significant operational problems for the Company due to
     planned  modifications to existing software and conversions to new software
     which have been implemented or are being  implemented by the Company during
     the year.

     Key business partners

              The Company is in the process of conducting a comprehensive review
     of its key business partners,  including customers,  suppliers and vendors,
     to identify those critical to the success of the Company's  operations that
     may have Year 2000 issues which could  adversely  affect the  operations of
     the Company.  The Company presently  believes that the Year 2000 issue will
     not pose  significant  operational  problems for the Company due to planned
     modifications  by our key business  partners to their existing  systems and
     conversions  to new  software  which  have  been  implemented  or are being
     implemented  by the  Company's  key business  partners  over the next year.
     However,  if such  modifications  and  conversions  are not  completed in a
     timely  manner,  the Year 2000 issue may have a material  adverse impact on
     the operations of the Company.  The Company cannot give assurance the third
     parties  with whom it does  business  will  address any Year 2000 issues in
     their own systems on a timely basis.

     Costs

              The total cost  associated with required  modifications  to become
     Year  2000  compliant  is not  expected  to be  material  to the  Company's
     financial  position.  At the present time,  all costs  associated  with the
     installation  and  upgrading of equipment and software have been related to
     routine upgrades of the Company's business systems, which to date have been
     approximately  $95,000. The Company estimates the remaining cost associated
     with the  installation and upgrading of the equipment will be approximately
     $15,000.  However,  the Company cannot give any assurance that  significant
     costs  associated  with  unforeseen  circumstances  will not  significantly
     affect the future results of the Company.

  
                                     11

     Products

              The Company has completed a comprehensive  review of its products,
     both  firmware and software,  to insure that they are Year 2000  compliant.
     This was done to insure that the  Company's  products  are free of any Year
     2000 issues  discussed  above.  The Company  believes  that the more recent
     versions of its products are Year 2000 compliant, meaning the products will
     perform  functions  correctly when processing dates later than December 31,
     1999.  In order to avoid  difficulties,  users  will  need to  install  the
     versions  of the  Company's  software  that are Year  2000  compliant.  For
     example,  FaxPress  systems  require  the use of a  software  and  firmware
     release of at least  version  3.7.3 and  InfoPress  requires  that at least
     version 2.0 be installed for compliance with Year 2000  requirements.  Full
     details on Year 2000 compliance of the Company's  products are available on
     the  Company's  Web  site.  The  Company  provides  upgrade  kits to  allow
     customers  to  install  these  versions.  The  Company's  products  work in
     conjunction  with  network  operating  systems  such as Novell  NetWare and
     Microsoft Windows 95/98/NT, and while these products appear to be Year 2000
     compliant,   the  Company  cannot  accept   responsibility  for  Year  2000
     compliance of any network operating system. If modifications or upgrades to
     these network operating systems are not completed in a timely fashion,  the
     Year  2000  issue  may have a  material  adverse  impact  on the  Company's
     business, operating results and financial condition.

     Contingency Plans

              The Company is in the process of developing  contingency  plans in
     the event that the Company's  systems or products prove to not be Year 2000
     compliant.  The Company has contingency plans in place for specific desktop
     and server based Year 2000 issues.  The Company is currently  reviewing its
     key  business  activities  to  develop  plans to support  ongoing  business
     operations  in the event of a  disruption  and  expects  these  plans to be
     completed by the end of the third quarter of 1999.  Based on its assessment
     to date, the Company  presently  believes that the Year 2000 Issue will not
     pose significant operational problems for the Company. However, the Company
     cannot give any assurance that these contingency plans will be effective in
     preventing Year 2000 related disruptions in the business which could have a
     material adverse impact on the Company's  business,  operating  results and
     financial condition.
 

                                       12

Other Matters

         The  Company   participated  in  a  hearing  with  The  Nasdaq  Listing
Qualifications  Panel  (the  "Panel")  on  March  5,  1999  for the  purpose  of
determining  whether the Company's  common stock would  continue to be listed on
The Nasdaq National  Market.  The hearing was scheduled  because the minimum bid
price of the Company's  common stock and the market value of the public float of
the  Company's  outstanding  common  stock  failed  to meet the  $1.00 per share
minimum  and $5.0  million  minimum,  respectively,  as  required  by The Nasdaq
National  Market  listing  maintenance  standards.  On April 12, 1999, the Panel
notified the Company that its request to be moved to The Nasdaq  SmallCap Market
had been approved and  effective at the open of business on April 14, 1999,  the
listing  of the  Company's  Common  Stock  would be  transferred  to The  Nasdaq
SmallCap Market pursuant to the following exception. On or before July 14, 1999,
the  Company  must  evidence a minimum  closing bid price of $1.00 per share and
immediately  thereafter,  the  Company's  closing  bid price must meet or exceed
$1.00 per share for a minimum of ten consecutive  trading days. The Company must
also be able to  demonstrate  compliance  with all  requirements  for  continued
listing on The Nasdaq  SmallCap  Market.  In the event the  Company is unable to
meet the terms of the  exception,  the  Company's  common stock will be delisted
from The Nasdaq SmallCap Market.  The Company can give no assurance that it will
be able to meet the  foregoing  requirements  by July 14, 1999. If the Company's
common stock is delisted from The Nasdaq SmallCap  Market,  the Company's common
stock would be listed on the OTC Bulletin Board.  There can be no assurance that
an active  trading  market for the  Company's  common  stock will develop on The
Nasdaq  SmallCap Market or if delisted,  on the OTC Bulletin  Board.  Lack of an
active trading market would have an adverse effect on a shareholder's ability to
liquidate an investment  in the  Company's  common stock easily and quickly at a
reasonable  price. It might also contribute to volatility in the market price of
the Company's common stock.  Because the Company's common stock is listed on The
Nasdaq  SmallCap  Market,  or in the event that the  Company's  common  stock is
delisted  from  The  Nasdaq  SmallCap  Market,  it may  be  difficult  to  raise
additional  equity or debt financing with reasonable terms or at all. Failure to
obtain  desired  financing  on  acceptable  terms  could  adversely  affect  the
Company's  business,  financial  condition and results of operations.  These and
other risk factors are discussed in more detail in the  Company's  Form 10-K for
the fiscal year ended December 31, 1998 under the section "Risk Factors."

         On April 21,  1999,  the Board of Directors  increased  the size of the
Board to seven members and elected Peter R. Tierney and Scott C. McDonald to the
Board.

                                       13




                           PART II - OTHER INFORMATION


ITEM 1.    LEGAL PROCEEDINGS

         None.


ITEM 2.    CHANGES IN SECURITIES

         None.


ITEM 3.    QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

         None.


ITEM 4.    SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

         None.


ITEM 5.    OTHER INFORMATION

         None.


ITEM 6.     EXHIBITS AND REPORTS ON FORM 8-K

         (a)      Exhibits:

                  27.1     Financial Data Schedule

                  99.1     Press Release dated April 13, 1999


         (b)      Reports on Form 8-K

                  None


                                       14



                                   SIGNATURES

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  Registrant  has duly  caused  this report to be signed on its behalf by the
undersigned, thereunto duly authorized.


CASTELLE

By:   /s/ Donald L. Rich                                      Date: May 14, 1999
      Donald L. Rich
      President, Chief Executive Officer and Director

By:   /s/ Laurie Gee                                          Date: May 14, 1999
      Laurie Gee
      Vice President of Finance and Administration
      (Principal Financial and Accounting Officer)

                                       15