Portable scanner document scanner scan technology cis scan format a4 supported document size 210 x 297 mm scan resolution 900 dpi interface usb 20 max scan speed 4 pagesmin document feeder manual compatible operating systems windows 8 windows 7 windows vista windows xp mac os x windows 81 windows 81 windows 8 windows 8 windows 10 colours white black width 257 mm depth 35 mm height 22 mm weight 019 kg