SPECIFICATIONS: Biometric authentication technology, support window 7 , Built-in sweeping type fingerprint identification. Portable hard disk to protect privacy and secure data. 1. Password bank, Up to 10 sets fingerprint enrolment. 2. Built in 2.5" SATA micro hard disk (option ) . 3. Plastic case. Dimension 12.7(H) × 7.5(W) × 1.8(D) cm; Unit weight: 183 g. 4. Can install 2.5" ATA/IDE micro hard disk, max. 500GB (optional ). 5. Fingerprint Sensor inside, 500dpi resolution. 6. Low power consumption, , USB2.0 interface(480Mbps). 7. No external power. No driver is required (except for Windows 98). 8. False acceptance rate (FAR): 1/1, 000, 000. 9. Allowable rotation: +/-15 degrees. 10. Scanning speed: Less than 1 seconds. 11. Matching speed: Less than 10ms. 12. Temperature: -40 to 70 degrees Celsius