Zoweetek DOD Military USB Common Access CAC Smart Card Reader, Compatible with Windows, Mac OS 10.6-10.10 and Linux Advanced Realtek Chipset; PIV, EMS, ISO-7816 & EMV2 2000 Level 1, CE, FCC, VCCI and Microsoft WHQL certifications. Supports ActivClient, AKO, OWA, DKO, JKO, NKO, BOL, GKO, Marinenet, AF Portal, Pure Edge Viewer, ApproveIt, DCO, DTS, LPS, Disa Enterprise Email and etc. CAC chip cards Sleek ergonomic flat design, precise slot, convenient to horizontally plug card Compatible with Windows 98/Me/2000/NT 4.0/XP/CE/Vista/7/8/8.1/10, Linux, Mac OS 10.6-10.10 New generation DOD Military CAC USB smart chip card reader, no firmware upgrade requirements