EXHIBIT 99.3 UNAUDITED PRO FORMA CONDENSED FINANCIAL STATEMENTS The following unaudited pro forma condensed financial statements give effect to the acquisition of ITK International, Inc. ("ITK") by Digi International, Inc. (the "Company") using the purchase method of accounting. These unaudited pro forma condensed financial statements are presented for illustrative purposes only and are not necessarily indicative of the combined financial position or results of operations for future periods or the results that actually would have been realized had the Company and ITK been a combined company during the specified periods. The pro forma condensed financial statements, including the notes thereto, are qualified in their entirety and should be read in conjunction with the historical consolidated financial statements of the Company and ITK. The unaudited pro forma condensed financial statements are based on the respective historical consolidated financial statements and the notes thereto of the Company and ITK. The purchase price was allocated to the estimated fair value of assets acquired and liabilities assumed. The preliminary purchase price allocation is based on the Company's estimates of fair value. The Company is awaiting additional information related to the fair value of certain assets acquired and liabilities assumed. However, management does not expect the finalization of the allocation of its purchase price to the assets acquired and liabilities assumed of ITK will have a material effect on the purchase price allocation. DIGI INTERNATIONAL INC. UNAUDITED PRO FORMA CONDENSED BALANCE SHEET JUNE 30, 1998 (DOLLARS IN THOUSANDS) DIGI ITK INTERNATIONAL INTERNATIONAL PRO FORMA ASSETS INC. INC. ADJUSTMENTS PRO FORMA Current assets: Cash and cash equivalents $ 44,945 $ 2,373 $(14,434)(a) $ 32,884 Accounts receivable, net 34,699 3,019 37,718 Inventories, net 16,404 5,267 21,671 Other 3,903 678 4,581 Total current assets 99,951 11,337 (14,434) 96,854 Property, equipment and improvements, net 22,572 10,668 33,240 Intangible assets, net 7,339 4,405 10,694(d) 22,438 Other 8,055 247 (5,000)(c) 3,302 Total assets $137,917 $26,657 $ (8,740) $155,834 LIABILITIES AND STOCKHOLDERS' EQUITY Current liabilities: Demand notes payable 14,168 (5,000)(c) 9,168 Accounts payable 8,105 4,756 12,861 Income taxes payable 6,873 6,873 Accrued expenses 5,379 5,573 10,952 Compensation 3,144 1,847 4,991 Current portion of long-term debt 115 115 Total current liabilities 23,501 26,459 (5,000) 44,960 Long-term liabilities, net of current portion 9,511 9,511 Total liabilities 23,501 35,970 (5,000) 54,471 Stockholders' equity: Common stock and capital in excess of par value (Digi: 14,951,203 shares; ITK: 27,392,904 shares; and 15,527,560 shares on a pro forma combined basis) 47,213 36,975 (13,910)(a) 61,123 (36,975)(b) Retained earnings (accumulated deficit) 90,032 (42,891) (42,891)(b) 64,032 (26,000)(d) Foreign currency translation adjustment (90) 90(b) 137,245 (6,006) (6,084) 125,155 Unearned stock compensation (975) (3,307) (963)(a) (1,938) 3,307(b) Treasury stock, at cost (21,854) (21,854) Total stockholders' equity 114,416 (9,313) (3,740) 101,363 Total liabilities and stockholders' equity $137,917 $26,657 $ (8,740) $155,834 THE ACCOMPANYING NOTES ARE AN INTEGRAL PART OF THE UNAUDITED PRO FORMA CONDENSED BALANCE SHEET. 2 DIGI INTERNATIONAL INC. NOTES TO UNAUDITED PRO FORMA CONDENSED BALANCE SHEET (DOLLARS IN THOUSANDS) 1. FINANCIAL STATEMENTS: Digi International Inc. (the "Company") has a September 30 fiscal year end. The unaudited historical balance sheet information of the Company as of June 30, 1998 was derived from the unaudited consolidated condensed financial statements of the Company which are included in the Company's report on Form 10-Q for the quarter ended June 30, 1998. Prior to its acquisition by the Company, ITK International Inc. ("ITK") had a June 30 fiscal year-end. The unaudited historical consolidated balance sheet information of ITK as of June 30, 1998 was derived from the consolidated financial statements of ITK included elsewhere in this Form 8-K/A. The pro forma condensed balance sheet assumes the business combination took place on June 30, 1998. 2. UNAUDITED PRO FORMA CONDENSED BALANCE SHEET ADJUSTMENTS: The purchase price was allocated to the estimated fair value of assets acquired and liabilities assumed. The pro forma adjustments presented are as of June 30, 1998. The Company is awaiting additional information related to the fair value of certain assets acquired and liabilities assumed. However, management does not expect the finalization of the allocation of its purchase price to the assets acquired and liabilities assumed of ITK will have a material effect on the purchase price allocation. (a) Adjustment reflects the components of the purchase consideration and related transaction costs, which included $14,434 in cash, the Company's common stock with a market value of $11,671 and $1,276 of replacement stock options issued by the Company to ITK option holders. The cash and the Company's common stock were issued in exchange for outstanding shares of ITK's common stock and the Company's stock options were issued in exchange for the outstanding ITK common stock options. The value of the Company's common stock issued is based on a per share value of approximately $20.25, which was the market value of the Company's common stock on the date the Company and ITK agreed to the terms of the purchase. The value of the Company's common stock options is based on the excess of the market value of the Company's common stock over the option exercise prices on the date that these options were granted to ITK employees. The purchase price will increase by $963 if the unvested portion of stock options granted to the ITK employees vest. Such amount has been recorded as unearned stock compensation in the stockholders' equity section of the unaudited pro forma condensed balance sheet as of June 30, 1998. (b) Adjustment reflects the elimination of ITK's historical stockholders' equity. (c) Adjustment reflects the elimination of note payable to the Company from ITK resulting from funds advanced to ITK during June 1998. 3 DIGI INTERNATIONAL INC. NOTES TO UNAUDITED PRO FORMA CONDENSED BALANCE SHEET, CONTINUED (DOLLARS IN THOUSANDS) 2. UNAUDITED PRO FORMA CONDENSED BALANCE SHEET ADJUSTMENTS, CONTINUED: (d) Adjustment reflects portion of purchase price allocated to identifiable intangible assets, including purchased in-process research and development. Valuation of the intangible assets acquired was conducted by an independent third-party appraisal company and consists of purchased in-process research and development, proven technology and an assembled workforce. The purchase price exceeded the estimated fair value of tangible assets acquired and liabilities assumed by approximately $41,099. This excess purchase price was allocated to purchased in-process research and development, identifiable intangible assets and goodwill, including certain existing identifiable intangible assets and goodwill of ITK as of June 30, 1998. The table below is a summary of the preliminary amounts allocated to purchased in-process research and development, identifiable intangible assets and goodwill. Cash and fair value of the Company's common stock and common stock options issued $26,276 Direct acquisition costs 1,105 ITK liabilities assumed 35,970 Total purchase price 63,351 Estimated fair value of tangible assets acquired (approximates recorded book value) 22,252 Purchase price in excess of estimated fair value of tangible assets acquired $41,099 Estimated fair value of in-process research and development, identifiable intangible assets and goodwill: In-process research and development 26,000 Identifiable intangible assets 12,700 Goodwill 2,399 $41,099 Management estimates that $26,000 of the purchase price represents the fair value of purchased in-process research and development that has not yet reached technological feasibility and has no alternative future use. This amount was expensed as a non-recurring, non-tax-deductible charge upon consummation of the acquisition. This amount has been reflected as a reduction in stockholders' equity and has not been included in the pro forma condensed statements of operations due to its non-recurring nature. 4 DIGI INTERNATIONAL INC. NOTES TO UNAUDITED PRO FORMA CONDENSED BALANCE SHEET, CONTINUED (DOLLARS IN THOUSANDS) 2. UNAUDITED PRO FORMA CONDENSED BALANCE SHEET ADJUSTMENTS, CONTINUED: The Company is using the acquired in-process research and development to create new products in the area of Internet Protocol Telephony, which will become part of the Company's product line over the next several years. The Company anticipates that the initial Internet Protocol Telephony products will be released in 2000 and 2001. The Company expects that the acquired in-process research and development will reach technological feasibility, but there can be no assurance that the commercial viability of these products will be achieved. The nature of the efforts required to develop the acquired in-process research and development into commercially viable products principally relate to the completion of all planning, designing, prototyping, verification and testing activities that are necessary to establish that the product can be produced to meet its design specifications, including functions, features and technical performance requirements. The estimated costs to be incurred to develop the purchased in-process technology into commercially viable products are approximately $24,800 in the aggregate through the year 2007, consisting of $300 in 1998; $2,000 in 1999; $4,800 in 2000; $4,800 in 2001; $4,300 in 2002; $3,200 in 2003; $2,500 in 2004; $1,400 in 2005; $900 in 2006 and $600 in 2007. The value assigned to purchased in-process research and development was determined through independent appraisers, who projected cash flows related to future products expected to be derived once technological feasibility is achieved, including costs to complete the development of the technology and the future revenues and costs which are expected to result from commercialization of the products. These cash flows were discounted back to their present values. The resulting net cash flows from such projects are based on estimates made by the Company's management of revenues, cost of sales, research and development costs, selling, general and administrative costs, and income taxes resulting from such projects. These estimates are based on the following assumptions: The estimated revenues are based upon projected average annual revenue growth rates from future products expected to be derived once technological feasibility is achieved of between 18% and 65% during the period from 2000 through 2005. Estimated total revenues expected from products to be developed using purchased in-process research and development peak in the year 2005 and decline rapidly in 2006 and 2007 as other new products are expected to enter the market. These projections are based on estimates made by the Company's management of market size and growth (which are supported by independent market data), expected trends in technology and the nature and expected timing of new product introductions by ITK and its competitors. These estimates also include growth related to the Company utilizing certain ITK technologies under development in conjunction with the Company's products, the Company marketing and distributing the resulting products through the Company's resellers, and the Company enhancing the market's response to ITK's products by providing incremental financial support and stability. 5 DIGI INTERNATIONAL INC. NOTES TO UNAUDITED PRO FORMA CONDENSED BALANCE SHEET, CONTINUED (DOLLARS IN THOUSANDS) 2. UNAUDITED PRO FORMA CONDENSED BALANCE SHEET ADJUSTMENTS, CONTINUED: The estimated cost of sales as a percentage of revenues is expected to be lower than ITK's cost of sales would have been on a stand-alone basis primarily due to the Company's expected ability to achieve more favorable pricing from key component vendors and production efficiencies due to economies of scale achieved through combined operations. The estimated selling, general and administrative costs are expected to more closely approximate the Company's cost structure (approximately 34% of revenues in 1997), which is lower than ITK's cost structure (approximately 81% of revenues in fiscal 1997). Cost savings are expected to result primarily from: (a) the changes related to certain restructuring actions including the shut-down of certain existing ITK facilities and a reduction in certain administrative ITK employees; (b) the distribution of ITK's products through the Company's resellers (i.e., sales of higher volume products with lower direct selling costs); and (c) efficiencies due to economies of scale through combined operations (i.e., consolidated marketing and advertising programs). These cost savings are expected to be realized primarily in 2000 and thereafter. Discounting the net cash flows back to their present values is based on the weighted average cost of capital (WACC). The WACC calculation produces the average required rate of return of an investment in an operating enterprise, based on various required rates of return from investments in various areas of that enterprise. The WACC assumed for the Company, as a corporate business enterprise, is 14%. The discount rate used in discounting the net cash flows from purchased in-process technology was 30%. This discount rate is higher than the WACC due to the inherent uncertainties in the estimates described above including the uncertainty surrounding the successful development of the purchased in-process research and development, the useful life of such completed research and development, the profitability levels of such completed research and development and the uncertainty of technological advances that are unknown at this time. If these products are not successfully developed, the sales and profitability of the combined company may be adversely affected in future periods. Additionally, the value of other intangible assets acquired may become impaired. The Company expects to begin to benefit from the purchased in-process research and development in 2000. The identifiable intangible assets of $12,700 included in the purchase price allocation set forth above are comprised of proven technology with an appraised fair value of $11,300, and an assembled workforce with an appraised fair value of $1,400, which have estimated useful lives of five years and six years, respectively. 6 DIGI INTERNATIONAL INC. UNAUDITED PRO FORMA CONDENSED STATEMENT OF OPERATIONS FOR THE YEAR ENDED SEPTEMBER 30, 1997 (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS) DIGI ITK INTERNATIONAL INTERNATIONAL PRO FORMA INC. INC. ADJUSTMENTS PRO FORMA Net sales $ 165,598 $ 21,028 $ 186,626 Cost of sales 85,483 13,156 98,639 Gross margin 80,115 7,872 87,987 Operating expenses: Sales and marketing 36,671 10,148 46,819 Research and development 17,978 5,191 23,169 General and administrative 19,325 6,843 $ 2,836(a) 29,004 Restructuring 10,471 10,471 Total operating expenses 84,445 22,182 2,836 109,463 Operating loss (4,330) (14,310) (2,836) (21,476) Other income (expense), net 154 (249) (722)(b) (817) Aetherworks Corporation net loss (5,764) (5,764) Aetherworks Corporation write off (5,759) (5,759) Loss before income taxes (15,699) (14,559) (3,558) (33,816) Income tax provision (benefit) 92 (253)(b) (161) Net loss $ (15,791) $ (14,559) $ (3,305) $ (33,655) Net loss per common and common equivalent $(1.18) $(0.54) - $(0.82) share, basic and diluted Weighted average common shares, basic and diluted 13,393,408 26,865,000 576,357(d) 40,834,765 The accompanying notes are an integral part of the unaudited pro forma condensed statement of operations. 7 DIGI INTERNATIONAL INC. UNAUDITED PRO FORMA CONDENSED STATEMENT OF OPERATIONS FOR THE NINE MONTHS ENDED JUNE 30, 1998 (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS) DIGI ITK INTERNATIONAL INTERNATIONAL PRO FORMA INC. INC. ADJUSTMENTS PRO FORMA Net sales $ 134,098 $ 25,105 $ 159,203 Cost of sales 65,105 19,456 84,561 Gross margin 68,993 5,649 74,642 Operating expenses: Sales and marketing 26,303 12,166 38,469 Research and development 11,887 4,860 16,747 General and administrative 10,025 6,693 $ 2,127(a) 18,845 Total operating expenses 48,215 23,719 2,127 74,061 Operating income (loss) 20,778 (18,070) (2,127) 581 Other income (expense), net 1,477 (929) (541)(b) 7 Aetherworks Corporation net loss 1,350 1,350 Income (loss) before income taxes 23,605 (18,999) (2,668) 1,938 Income tax provision (benefit) 8,686 8 (189)(b) 713 (7,792)(c) Net income (loss) $ 14,919 $ (19,007) $ 5,313 $ 1,225 Net income (loss) per common share, basic $1.10 $(0.69) - $0.03 Net income (loss) per common share, assuming dilution $1.05 $(0.69) - $0.03 Weighted average common shares, basic 13,535,512 27,392,000 576,357(d) 41,503,869 Weighted average common shares, assuming dilution 14,216,915 27,392,000 648,261(d) 42,257,176 The accompanying notes are an integral part of the unaudited pro forma condensed statement of operations. 8 DIGI INTERNATIONAL INC. UNAUDITED PRO FORMA CONDENSED STATEMENT OF OPERATIONS FOR THE NINE MONTHS ENDED JUNE 30, 1997 (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS) DIGI ITK INTERNATIONAL INTERNATIONAL PRO FORMA INC. INC. ADJUSTMENTS PRO FORMA Net sales $ 123,473 $ 13,040 $ 136,513 Cost of sales 64,420 8,111 72,531 Gross margin 59,053 4,929 63,982 Operating expenses: Sales and marketing 29,310 11,910 41,220 Research and development 14,284 3,916 18,200 General and administrative 13,964 $ 2,127(a) 16,091 Restructuring 10,472 10,472 Total operating expenses 68,030 15,826 2,127 85,983 Operating loss (8,977) (10,897) (2,127) (22,001) Other income (expense), net 343 150 (541)(b) (48) Aetherworks Corporation net loss (4,634) (4,634) Loss before income taxes (13,268) (10,747) (2,668) (26,683) Income tax benefit (1,357) (189)(b) (1,546) Net loss $ (11,911) $(10,747) $ (2,479) $ (25,137) Net loss per common and common equivalent share, basic and diluted $(0.89) $(0.40) - $(0.62) Weighted average common shares, basic and diluted 13,379,899 26,790,000 576,357(d) 40,746,256 The accompanying notes are an integral part of the unaudited pro forma condensed statement of operations. 9 DIGI INTERNATIONAL INC. NOTES TO UNAUDITED PRO FORMA CONDENSED STATEMENT OF OPERATIONS (DOLLARS IN THOUSANDS) 1. FINANCIAL STATEMENTS: Digi International Inc. (the Company) has a September 30 fiscal year-end. The unaudited historical statement of operations information of the Company for the year ended September 30, 1997 was derived from the consolidated financial statements of the Company, which are included in the Company's annual report on Form 10-K for the year ended September 30, 1997. The historical statement of operations information of the Company for the nine-month periods ended June 30, 1998 and 1997 was derived from the condensed financial statements of the Company which are included in the Company's reports on Form 10-Q for the quarters ended June 30, 1997 and 1998. Prior to the acquisition by the Company, ITK International Inc. (ITK) had a June 30 fiscal year-end. Accordingly, the ITK statement of operations information for the twelve-month period ended September 30, 1997 and the nine-month periods ended June 30, 1998 and 1997 has been derived by combining ITK's unaudited consolidated results of operations for the applicable calendar quarters. The pro forma condensed statements of operations assume the business combination took place as of the beginning of the periods presented. The pro forma condensed statement of operations for the twelve-month period ended September 30, 1997 combines the Company's consolidated statement of operations and ITK's consolidated statement of operations for the twelve-month period then ended. The pro forma condensed statements of operations for the nine-month periods ended June 30, 1998 and 1997 combine the Company's unaudited consolidated statement of operations and ITK's unaudited consolidated statement of operations for the nine-month periods ended June 30, 1998 and 1997, respectively. On a combined basis there were no material transactions between the Company and ITK during the periods presented. The pro forma combined provision for income taxes may not necessarily be indicative of amounts that would have resulted had the Company and ITK filed consolidated income tax returns during the periods presented. 2. UNAUDITED PRO FORMA CONDENSED STATEMENT OF OPERATIONS ADJUSTMENTS: The purchase price was allocated based upon the estimated fair value of assets acquired and liabilities assumed. The preliminary purchase price allocation is based on the Company's estimates of fair value. The Company is awaiting additional information related to the fair value of certain assets acquired and liabilities assumed. However, management does not expect the finalization of the allocation of its purchase price to the assets acquired and liabilities assumed of ITK will have a material effect on the purchase price allocation. 10 DIGI INTERNATIONAL INC. NOTES TO UNAUDITED PRO FORMA CONDENSED STATEMENT OF OPERATIONS CONTINUED (DOLLARS IN THOUSANDS) 2. UNAUDITED PRO FORMA CONDENSED STATEMENT OF OPERATIONS ADJUSTMENTS, CONTINUED: (a) Adjustment reflects amortization of acquired identifiable intangible assets and goodwill. Identifiable intangible assets of $12,700 are comprised of proven technology with an appraised value of $11,300, and an assembled workforce with an appraised value of $1,400 which have estimated useful lives of five years and six years, respectively. The estimated annual non-tax-deductible amortization charge related to the proven technology and workforce is approximately $2,493. The estimated annual non-tax-deductible amortization charge related to amortization of the $2,399 allocated to goodwill, which has an estimated useful life of seven years, is approximately $343. (b) Adjustment reflects the decrease in interest income and related tax effect resulting from the use of cash and cash equivalents to complete the acquisition. The assumed rate of return on the cash balance was 5%. (c) Adjustment reflects the portion of Digi's income tax provision which would not have been recognized due to ITK's U.S. net operating losses for the nine-moth period ended June 30, 1998. (d) Adjustment reflects net increase (decrease) in weighted average common shares and common equivalent shares outstanding for common stock and common stock options issued in connection with the acquisition, as well as equivalent shares of the Company that have an antidilutive effect on pro forma diluted earnings per common share. Pro forma basic earnings per common share for the periods presented were calculated assuming that the 576,357 shares of the Company's common stock issued in connection with the acquisition were issued at the beginning of the periods presented. The calculation of pro forma diluted earnings per common share excludes the 71,904 equivalent shares of the Company attributable to the common stock options issued by the Company in connection with the acquisition, to replace existing ITK common stock options. Such equivalent shares were excluded in determining the weighted average equivalent shares outstanding for the year ended September 30, 1997 and the nine-month period ended June 30, 1997, because their effect was antidilutive. 11