Document scanner portable scanner scan technology cis scan format a4 supported document size 216 x 356 mm scan resolution 600 dpi interface usb 20 max scan speed 4 pagesmin document feeder manual colour depth 24 bit scan documents documents business cards light source led tri colour rgb functions scan to cloud compatible operating systems windows 8 windows 7 windows vista windows xp power supply usb power consumption in use 23 watt colour g