3.5-inch TFT Screen, Fingerprint Capacity: 5, 000 , Card Capacity : 30,000, Transaction Capacity : 200,000, Communication: TCP/IP, USB-host ; Optional with Wi-Fi, GPRS,3G, Power Supply: 12V 3A DC, Built-in Backup 7600 mAh Battery, Dimension : 225 x235x125(mm) HxWxD, RFID Card (standard)/Mifare Card(optional)