HID ICLASS ACCESS CAPACITY: EEPROM 512BITS (64BYTES) 48B 128B; INTERFACE: RF INTERFACE AS SUGGESTED BY ISO IEC: 15693 READ WRITTEN, MODE 14443B – 106 KBPS. DIMENSIONS: 2.127” X 3.375” X, 0.033” MAX. (5.40 X 8.57 X 0.084 CM), WEIGHT 5.7 G (0.20 OZ) MATERIAL: PVC. ADDITIONAL FEATURES: OPERATING FREQUENCY, 13.56MHZ, DATA TRANSFER SPEED 106KBITS, SENHA CRYTOGRAPHY 32 BITS, WRITING RESISTANCE 100 CYCLES, DATA RETENTION 10 YEARS. DESIGN: STANDARD OPERATING DISTANCE OR UP TO 10CM; SUCCESSOR BRANDS: ASSA ABLOY MIFAREULTRALIGHT EV1