Sensor Semiconductor Sensor , Area Type Hardware Interface USB 2.0 (480Mbit/sec) Resolution 508 dpi Field Size 13.6mmx11.8mm(236x192pixels) Dimension 77mm(H) x 15mm(W) x 27mm(D) Scanning Speed < 1 second Matching Speed < 10 ms Gray Level 256 levels(8bits/pixel) FRR 1/1,000 FAR 1/1,000,000 Non-operating Temperature 0° C ~ +50° C Operating Humidity 20%~80% ESD 18~20KV Allowable Rotation ± 15° MMI LED Weight 19 GM Storage Capacities 256MB Power USB bus power Operating System Windows 98/ME/XP/2000 Multilingual Simplified Chinese, Traditional Chinese, French, German, Spanish,English and Japanese.