Key Specifications • Pixel resolution: 512 dpi (average x,y over the field)• Fingerprint Scan capture area: 15 mm (nom. width at center), 20 mm (nom. length)• 8-bit grayscale (256 levels of gray)• Reader size (approximate):63 mm x 39 mm x 9.1 mm• Compatible with USB 1.0, 1.1 and 2.0 (Full Speed)