Humanized designThe cap of this credit card reader is designed with 360 rotation, which is ergonomic, protects the USB interface, and is easy to open. The integrated design prevents the cap from being removed and lost, the slot is accurate, and it is easy to insert the card. 4 card slots design, plug and play, after connecting the USB to the device, the indicator light will turn red. Note: The card slot can only be used alone - Support bank, post office, chip card issuance to all parts of the country - Can be used for CAC (Common Access Card), Government ID, National ID - Smartcard operations for all contacts for Internet Banking or Digital Signature applications: ActivClient, AKO, OWA, DKO, JKO, NKO, BOL, GKO, Marinenet, AF Portal, Pure Edge Viewer, ApproveIt, DCO, DTS, LPS, Disa Business mailbox, etc. - Compatible with multiple computer operating systems and smart card operations for digital authentication and security, network ATM transfer, payment, balance inquiry, tax, water bill, electricity bill payment, credit card bill payment, cash card payment. Specification: - Easy USB 2.0 plug and play installation - Card Type: ISO 7816 Type A, AB andamp C 5V, 3V andamp 1.8V Smart Card - Certification Standards: EMV2 2000 Class 1, CE, FCC, VCCI, CCID, Microsoft WHQL. - Operating System: Mac OS, Windows 10, 8, 7, Vista, XP, 2000, 2003, 2008, ME Package Contents: 1 x Card reader Notice: DOD and USG users point out that you need a third-party CACEnabler program. SIM cards are only compatible with Windows. Mac OS and Linux are not currently supported. 1.DOD-CAC USB Smart Card Reader for Government ID, Domestic ID, ActivClient, AKO, OWA, DKO, JKO, NKO, BOL, GKO, Marinenet, AF Portal, Pure Edge Viewer, ApproveIt, DCO, DTS, LPS, Disa business email and other CAC cards 2. Smart card detection: motion detection with automatic shutdown, automatic detection of smart card type short circuit and overheat protection 3. Compatible with US government DOD ID cards to ensure secure login 4. Card Type: ISO7816 Class A, B and C (5V or 3V or 1.8V) Smart Card Notice: 1, can not read the ID card, 2. The bank card cannot be read.