Operating System: Build-in Linux OS; Fingerprint Capacity: 5,000; Log Capacity: 100,000 events; Communication: USB and TCP/IP With Camera,TCPIP+USB High capacity: 5000 users, 100,000 records Big color screen,3.5 inch Multiple connection protocols 0. With Camera configured1. 3.5 inch TFT screen and with Linux Operating System. 2. User capacity in standard is 5000, and availably costomize 10000 to ...