The U.are.U 4500 is a USB fingerprint...
Canon P-215 Compact Duplex Scanner - Portable Ultra compact high volume duplex scanner
Canon Canoscan LiDE 220 Flatbed Scanner - 4800x4800dpi, USB 2.0, A4 scan 10 seconds, 5 EZ buttons to Auto Scan, Copy, Email and PDF
Optical Resolution: 2400 x 4800 dpi Max Resolution: 19200 x 19200 dpi Max Document Size: 8.5 x 11.7"
Scans up to 45 ppm in B&W, grayscale, and up to 30 ppm in color - both sides of an item in a single pass
CANON DR-F120 SCANNER
Scan Documents and Cards Optical Resolution: 600 dpi Scan Speed: 25 ppm / 50 ipm Color Depth: 24-bit
600 dpi Up to 100 ppm / 200 ipm Automatic Double-Sided Scanning 500-Sheet Auto Document Feeder
High speed scanning Easily scan various types of documents Quite operation iWEMC Support User friendly LCD panel