Document scanner portable scanner scan technology cis scan format a4 supported document size 216 x 910 mm scan resolution 600 dpi interface usb 20 max scan speed 6 pagesmin colour depth 48 bit scan documents documents controls 2 scan buttons pdf scan power supply usb colours black gray software included newsoft presto pagemanager 710 hotcard bizcard finder 30 plustek di capture plustek docaction plustek doctwain abbyy finereader plustek di exp