Capacitive-type sensor fingerprint swipe sensor User interface: USB Cable 1.1 or 2.0 Storage density: 500MB, 1, 2, 32 GB more. Sensor: capacitive - type fingerprint swipe sensorUser interface: USB Cable 1.1 or 2.0Storage density: 500MB, 1, 2, 32, 64, 96, 128GB(no Limit, depends on your computer hard driver)Operating condition: Temperature - 0 to 40°CSystem Requirements:1.OS: Windows Vista / XP / ...