... to integrate into various system Product Description1. Standalone fingerprint time recording system, can connect with 5V backup power supply ... USB cable. 3. Advanced LINUX Embedded operation system, 24 hours continuous operation available 4. Support Short message showing function ... 50000 records, Communications: RS232, RS485, TCP/IP, USB port Identification time: ≤ 1S FAR: ≤ 0.0001% FRR: ≤ 0.01% ...