您的投票很重要！在您投票查看年度Report，1234567890123456789012345678901234567890,12345678901234567890、12345678901234567890、12345678901234567890、12345678901234567890、12345678901234567890123456789012345678901234567890之前，请在网上获得通知，或者您可以通过以下方式获得一份免费的纸质投票材料。如果您想索取投票材料的副本，您可以(1)访问www.ProxyVote.com，(2)致电1-800-579-1639或(3)发送电子邮件至sendMaterial@proxyvote.com。如果发送电子邮件，请在主题行中包含您的控制编号(如下所示)。智能手机用户将相机指向此处并投票，无需输入控制编号有关完整信息和投票，请访问www.ProxyVote.com Control# flashid-job# Ricky CampanaP.O.Box 123456Suite 50051 Mercedes WayEdgewood，NY 117171 of 2322,224148,29430# XXXX XXXX DIGI International Inc.2023年年会投票截止日期：1月26日美国东部时间2023年11：59 PM DIGI International Inc.收信人：总法律顾问办公室9350 Excelsior Blvd.，Suite 700 MN 55343 您投资了DIGI International Inc.投票时间到了！您有权对在年会上提交的提案进行投票。这是一项重要通知，涉及2023年1月27日召开的股东会议的代理材料的可用性。在线查看通知和代理声明、年度报告，或者您可以在2023年1月13日之前通过请求获得材料的免费纸质或电子邮件副本。如果您希望请求本次和/或未来股东会议的材料副本，您可以(1)访问www.ProxyVote.com，(2)致电1-800-579-1639或(3)发送电子邮件至sendMaterial@proxyvote.com。如果发送电子邮件，请在主题行中包含您的控制号码(如下所示)。除非提出请求，否则您不会收到纸质或电子邮件副本。在会议上进行虚拟投票* 2023年1月27日下午3：30 Cst 虚拟at： www.virtualshareholdermeeting.com/DGII2023 *Please查看会议材料，了解有关会议出席的任何特殊要求。

THIS IS NOT A VOTABLE BALLOTThis is an overview of the proposals being presented at the upcoming shareholder meeting. Please follow the instructions on the reverse side to vote these important matters. Vote at www.ProxyVote.com Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Sign up for E-delivery”. Voting ItemsBoard RecommendsFLASHID-JOB#Control # XXXX XXXX XXXX XXXXTHE COMPANY NAME INC. - COMMON ASDFGHJKL 123456789.1234THE COMPANY NAME INC. - CLASS A 123456789.1234THE COMPANY NAME INC. - CLASS B 123456789.1234THE COMPANY NAME INC. - CLASS C 123456789.1234THE COMPANY NAME INC. - CLASS D 123456789.1234THE COMPANY NAME INC. - CLASS E 123456789.1234THE COMPANY NAME INC. - CLASS F 123456789.1234THE COMPANY NAME INC. - 401 K 123456789.1234SHARE CLASSES REPRESENTED FOR VOTING This is an overview of the proposals being presented at the upcoming stockholder meeting. Please follow the instructions on the reverse side to vote these important matters. 1. Election of Directors Nominees: 1a. Satbir Khanuja, Ph.D. For 1b. Ronald E. Konezny For 2. Company proposal to approve, on a non-binding advisory basis, the compensation paid to named executive officers. For 3. Company proposal to ratify the appointment of Deloitte & Touche LLP as independent registered public accounting firm of the company for the fiscal year ending September 30, 2023. For 4. Company proposal to approve the amendment and restatement of the Digi International Inc. 2021 Omnibus Incentive Plan. For NOTE: If any other matters properly come before the annual meeting calling for a vote of stockholders, the shares represented by this proxy will be voted by the persons named herein in accordance with their best judgment.

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