... 80 x 25 mm 2 .USB 2.0 interface, plug and play 3. Support IEC 14443 A / ISO 15693 4 ... MHzOperating DistanceUp to 50 mmSupport typeMifare, ISO 14443 A/ B, ICODE 23. ElectricalPower sourceFrom USB, 5V ... cardExpended features IEC14443 Type BSR176, SRIX4K, AT88RF020...IEC15693ICODE SLi 2, Tag-it 256, Tag-it 2048... 5. Certification ... 56 Mhz mifare rfid reader, IEC 14443 A, USB 2.0, build-in driver