... x 25 mm 2 .USB 2.0 interface, plug and play 3. Support IEC 14443 A / ISO 15693 4. Windows, Mac os ... 100 mAInterfaceUSB 2.0, 12 MbpsSupply currentmax :200 mAstandby :50 mAnormal :100 mABi-Color LEDRed and GreenBuzzerMonotone4. OS supportWindows XP, Vista ,Windows 7 ... , CPU cardExpended features IEC14443 Type BSR176, SRIX4K, AT88RF020...IEC15693ICODE SLi 2, Tag-it 256, Tag-it 2048... 5. Certification CE, ...