ACR1281U-C1 DualBoost II USB Dual Interface NFC Reader  USB 2.0 Full Speed Interface CCID Compliance Contactless Smart Card Reader: Read/write speed of up to 848 kbps Built-in antenna for contactless tag access, with card reading distance of up to 50 mm (depending on tag type) Supports ISO 14443 Part 4 Type A and B cards and MIFARE series Built-in anti-collision feature (only one tag is accessed at any time) Supports extended APDU (max. 64 kbytes) Contact Smart Card Reader: Supports ISO 7816 Class A, B and C (5 V, 3V and 1.8 V) Supports CAC (Common Access Card) Physical Characteristics Dimensions (mm) 120.5 mm (L) x 72.0 mm (W) x 20.4 mm (H) Weight (g) 140 g USB Interface Protocol USB CCID Connector Type Standard Type A Power Source From USB port Speed USB Full Speed (12 Mbps) Cable Length 2.0 m, Fixed Contact Smart Card Interface Number of Slots 1 Full-sized Card Slot Standard ISO 7816 Class A, B, C (5 V, 3 V, 1.8 V) Protocol T=0; T=1 Contactless Smart Card Interface Standard ISO 14443 A & B Parts 1-4 Protocol ISO 14443-4 Compliant Card, T=CL MIFARE® Classic Card, T=CL SAM Card Interface Number of Slots 1 Standard SIM-sized Card Slot Standard ISO 7816 Class A (5 V) Protocol T=0; T=1 Built-in Peripherals LED 2 single-color: Red and Green Buzzer Monotone Other Features Firmware Upgrade Supported Certifications/Compliance Certifications/Compliance ISO 14443 ISO 7816 USB Full Speed PC/SC CCID Microsoft® WHQL CE FCC RoHS 2 REACH Device Driver Operating System Support Device Driver Operating System Support Windows® Linux® MAC OS® Solaris Android™