EXHIBIT 24

DIGI INTERNATIONAL INC.

Power of Attorney

of Director and Officer

The undersigned director and officer of Digi International Inc., a Delaware corporation, does hereby make, constitute and appoint Steven E. Snyder the undersigned's true and lawful attorney-in-fact, with power of substitution, for the undersigned and in the undersigned's name, place and stead, to sign and affix the undersigned's name as such director and officer of said Corporation to an Annual Report on Form 10-K or other applicable form, and all amendments thereto, to be filed by said Corporation with the Securities and Exchange Commission, Washington, D.C., under the Securities Exchange Act of 1934, as amended, with all exhibits thereto and other supporting documents, with said Commission, granting unto said attorney-in-fact full power and authority to do and perform any and all acts necessary or incidental to the performance and execution of the powers herein expressly granted.

IN WITNESS WHEREOF, the undersigned has hereunto set the undersigned's hand this 20th day of November, 2012.

/s/ Joseph T. Dunsmore

Joseph T. Dunsmore

EXHIBIT 24

DIGI INTERNATIONAL INC.

Power of Attorney

of Officer

The undersigned officer of Digi International Inc., a Delaware corporation, does hereby make, constitute and appoint Joseph T. Dunsmore, the undersigned's true and lawful attorney-in-fact, with power of substitution, for the undersigned and in the undersigned's name, place and stead, to sign and affix the undersigned's name as such officer of said Corporation to an Annual Report on Form 10-K or other applicable form, and all amendments thereto, to be filed by said Corporation with the Securities and Exchange Commission, Washington, D.C., under the Securities Exchange Act of 1934, as amended, with all exhibits thereto and other supporting documents, with said Commission, granting unto said attorney-in-fact full power and authority to do and perform any and all acts necessary or incidental to the performance and execution of the powers herein expressly granted.

IN WITNESS WHEREOF, the undersigned has hereunto set the undersigned's hand this 20th day of November, 2012.

/s/ Steven E. Snyder

Steven E. Snyder

EXHIBIT 24

DIGI INTERNATIONAL INC.

Power of Attorney

of Director

The undersigned director of Digi International Inc., a Delaware corporation, does hereby make, constitute and appoint Joseph T. Dunsmore and Steven E. Snyder, and either of them, the undersigned's true and lawful attorneys-in-fact, with power of substitution, for the undersigned and in the undersigned's name, place and stead, to sign and affix the undersigned's name as such director of said Corporation to an Annual Report on Form 10-K or other applicable form, and all amendments thereto, to be filed by said Corporation with the Securities and Exchange Commission, Washington, D.C., under the Securities Exchange Act of 1934, as amended, with all exhibits thereto and other supporting documents, with said Commission, granting unto said attorneys-in-fact, and either of them, full power and authority to do and perform any and all acts necessary or incidental to the performance and execution of the powers herein expressly granted.

IN WITNESS WHEREOF, the undersigned has hereunto set the undersigned's hand this 20th day of November, 2012.

/s/ Guy C. Jackson

Guy C. Jackson

EXHIBIT 24

DIGI INTERNATIONAL INC.

Power of Attorney

of Director

The undersigned director of Digi International Inc., a Delaware corporation, does hereby make, constitute and appoint Joseph T. Dunsmore and Steven E. Snyder, and either of them, the undersigned's true and lawful attorneys-in-fact, with power of substitution, for the undersigned and in the undersigned's name, place and stead, to sign and affix the undersigned's name as such director of said Corporation to an Annual Report on Form 10-K or other applicable form, and all amendments thereto, to be filed by said Corporation with the Securities and Exchange Commission, Washington, D.C., under the Securities Exchange Act of 1934, as amended, with all exhibits thereto and other supporting documents, with said Commission, granting unto said attorneys-in-fact, and either of them, full power and authority to do and perform any and all acts necessary or incidental to the performance and execution of the powers herein expressly granted.

IN WITNESS WHEREOF, the undersigned has hereunto set the undersigned's hand this 20th day of November, 2012.

/s/ Kenneth E. Millard

Kenneth E. Millard

EXHIBIT 24

DIGI INTERNATIONAL INC.

Power of Attorney

of Director

The undersigned director of Digi International Inc., a Delaware corporation, does hereby make, constitute and appoint Joseph T. Dunsmore and Steven E. Snyder, and either of them, the undersigned's true and lawful attorneys-in-fact, with power of substitution, for the undersigned and in the undersigned's name, place and stead, to sign and affix the undersigned's name as such director of said Corporation to an Annual Report on Form 10-K or other applicable form, and all amendments thereto, to be filed by said Corporation with the Securities and Exchange Commission, Washington, D.C., under the Securities Exchange Act of 1934, as amended, with all exhibits thereto and other supporting documents, with said Commission, granting unto said attorneys-in-fact, and either of them, full power and authority to do and perform any and all acts necessary or incidental to the performance and execution of the powers herein expressly granted.

IN WITNESS WHEREOF, the undersigned has hereunto set the undersigned's hand this 20th day of November, 2012.

/s/ Ahmed Nawaz

Ahmed Nawaz

EXHIBIT 24

DIGI INTERNATIONAL INC.

Power of Attorney

of Director

The undersigned director of Digi International Inc., a Delaware corporation, does hereby make, constitute and appoint Joseph T. Dunsmore and Steven E. Snyder, and either of them, the undersigned's true and lawful attorneys-in-fact, with power of substitution, for the undersigned and in the undersigned's name, place and stead, to sign and affix the undersigned's name as such director of said Corporation to an Annual Report on Form 10-K or other applicable form, and all amendments thereto, to be filed by said Corporation with the Securities and Exchange Commission, Washington, D.C., under the Securities Exchange Act of 1934, as amended, with all exhibits thereto and other supporting documents, with said Commission, granting unto said attorneys-in-fact, and either of them, full power and authority to do and perform any and all acts necessary or incidental to the performance and execution of the powers herein expressly granted.

IN WITNESS WHEREOF, the undersigned has hereunto set the undersigned's hand this 20th day of November, 2012.

/s/ William N. Priesmeyer

William N. Priesmeyer

EXHIBIT 24

DIGI INTERNATIONAL INC.

Power of Attorney

of Director

The undersigned director of Digi International Inc., a Delaware corporation, does hereby make, constitute and appoint Joseph T. Dunsmore and Steven E. Snyder, and either of them, the undersigned's true and lawful attorneys-in-fact, with power of substitution, for the undersigned and in the undersigned's name, place and stead, to sign and affix the undersigned's name as such director of said Corporation to an Annual Report on Form 10-K or other applicable form, and all amendments thereto, to be filed by said Corporation with the Securities and Exchange Commission, Washington, D.C., under the Securities Exchange Act of 1934, as amended, with all exhibits thereto and other supporting documents, with said Commission, granting unto said attorneys-in-fact, and either of them, full power and authority to do and perform any and all acts necessary or incidental to the performance and execution of the powers herein expressly granted.

IN WITNESS WHEREOF, the undersigned has hereunto set the undersigned's hand this 20th day of November, 2012.

/s/ Bradley J. Williams

Bradley J. Williams