Max Scan size :A4 Image sensor:5 Mega piexels (CMOS) Resolution: ... , courses,3, Green environmental, low carbon energy saving.Adopt USB connect with computer, no need extra power-supply ... shootingThe cloth-table marked the size of ID,A4 paper and other standard documents just need put ... service 4, We also accept customized request a4 high speed scanner with high resolution, usb power, 5.0MP CMOS ...