EXHIBIT 15




Securities and Exchange Commission
450 Fifth Street N.W.
Washington, D.C.  20549


We are aware that our report dated January 28, 1998 on our reviews of interim
condensed consolidated financial information of Digi International Inc. and
Subsidiaries (the Company) for the three month periods ended December 31, 1997
and 1996, and included in the Company's Form 10-Q for the quarter ended December
31, 1997, is incorporated by reference in the Company's registration statements
on Form S-8 (Registration Nos. 33-32956, 33-38898, 333-99, and 333-1821) and
Form S-3 (Registration No. 33-59223).  Pursuant to Rule 436(c), under the
Securities Act of 1933, this report should not be considered a part of the
registration statements prepared or certified by us within the meaning of
Sections 7 and 11 of that Act.



                                   COOPERS & LYBRAND L.L.P.

Minneapolis, Minnesota
February 6, 1998