NFC ACR122U RFID Smart Card Reader Writer Copier Duplicator Writable Clone Software USB S50 13.56mhz ISO/IEC18092+5pcs UID Cards+5pcs UID tag Feactures CCID-compliant PC/SC-compliant Read/write speed up to 424 kbps Built-in antenna for contactless tag access, with card reading distance of up to 50 mm (depending on tag type) Supports ISO 14443 Type A and B, Mif, FeliCa, and all 4 types of NFC (ISO/IEC 18092) tags Supports new Mif Ultralight C (via pseudo APDUs) and Mif Plus SL1 (4 Byte UID, via pseudo APDUS) and SL3 Supports all 3 modes of NFC: reader, card emulation and peer-to-peer modes Built-in anti-collision feature (at least 1 card is detected when multiple cards are presented) USB PnP User-controllable bi-color LED Applications Network access control Micro-payment NFC mobile tag Public transportation terminals Automatic fare collection Physical access control Customer loyalty Time and attendance Contactless public phones Vending machines Tech Specs: Dimensions 98 mm (L) x 65 mm (W) x 12.8 mm (H) Weight 70 g Interface USB Full Speed Operating Distance <;= 50mm (depends on tag type) Supply Voltage Regulated 5V DC Supply Current 200mA (operating); 50mA (standby); 100mA (normal) Operating Temperature 0-50°C Operating Frequency 13.56 MHz Smart Card Interface Support ISO14443 Type A &BMifFeliCa4types of NFC (ISO/IEC18092) tags Compliance/Certifications PC/SC, CCID, CE, FCC, VCCI, RoHS Compliant, USB Full Speed Microsoft ® WHQL: 2000, Server 2003, XP, Vista, Server 2008, Server 2008 R2, 7 Operating System Support Win 98, Win ME, Win 2000, Win XP, Win Vista, Win 7, Win Server 2003, Win Server 2008 Win XP x64, Win Vista x64, Win 7 x64, Win Server 2003 x64, Win Server 2008 x64, Win Server 2008 R2 x64 Windows CE 5.0 Linux Mac