Model: U5 (does not support file encryption) Interface: Support USB2.0/3.0 Compatible systems: for Win10/Win11 (for win 10/Win 11 system driver-free) Number of supported fingerprints: 10 fingers, 360-degree touch Fingerprint recognition speed: instant, within 0.3 seconds False recognition rate:Less than 1/50000(0.002%) Rejection rate: Less than 2% Fingerprint reading speed: 50ms Fingerprint sensor category: Capacitive (non-scratch) Supported languages: Japanese, English, German, Traditional/Simplified Chinese, Vietnamese, Persian, Korean Product size: 20.5x18x8.1mm 0.81x0.71x0.32inch Weight: 40g Colour:Black Material:abs Package Contents: 4 x USB fingerprint key reader Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.