<ARTICLE> 5
<MULTIPLIER> 1,000
       
                                                  
<PERIOD-TYPE>                   YEAR                   6-MOS
<FISCAL-YEAR-END>                          MAR-31-1996             MAR-31-1997
<PERIOD-START>                             APR-01-1995             APR-01-1996
<PERIOD-END>                               MAR-31-1996             SEP-30-1996
<CASH>                                           4,652                   7,373
<SECURITIES>                                     5,241                      89
<RECEIVABLES>                                    4,099                   2,248
<ALLOWANCES>                                       520                     446
<INVENTORY>                                      7,270                   1,211
<CURRENT-ASSETS>                                21,026                  10,763
<PP&E>                                           7,048                   7,211
<DEPRECIATION>                                   5,522                   5,632
<TOTAL-ASSETS>                                  23,067                  12,856
<CURRENT-LIABILITIES>                           11,693                   5,035
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          3                       4
<COMMON>                                             5                       7
<OTHER-SE>                                      11,366                   7,740
<TOTAL-LIABILITY-AND-EQUITY>                    23,067                  12,856
<SALES>                                         28,774                  10,975
<TOTAL-REVENUES>                                28,774                  10,075
<CGS>                                           16,668                   9,207
<TOTAL-COSTS>                                   16,255                   6,762
<OTHER-EXPENSES>                                 (952)                   (127)
<LOSS-PROVISION>                                   313                       0
<INTEREST-EXPENSE>                                   0                       0
<INCOME-PRETAX>                                (3,197)                 (5,767)
<INCOME-TAX>                                        20                     146
<INCOME-CONTINUING>                            (3,217)                 (5,913)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                   (3,217)                 (5,913)
<EPS-PRIMARY>                                        0                       0
<EPS-DILUTED>                                   (0.28)<F1>              (0.50)<F1>
<FN>
<F1>Proforma net loss per share is computed using the weighted average number of
common and common equivalent shares outstanding during the period assuming the
conversion of all shares of the Company's Convertible Preferred Stock into
Common Stock which will occur upon the consummation of the offering.  Pursuant
to the requirements of the SEC, common equivalent shares relating to preferred
stock (using the if-converted method) and stock options (using the treasury
stock method when assuming an initial public offering price of $9 per share) 
issued subsequent to September 30, 1995, have been included in the computation 
for all periods presented.
</FN>