Artixscan Di 4020 Fb Clr Duplex 40PPM USB 2.0 Lgl 600DPI 100PG Adf Box Contents - ArtixScanDI 4020 dual flatbed/sheetfed document scanner, 100-page Automatic Document Feeder, Hi-Speed USB cable, External power adapter, Software CD, Getting Started Guide, 1-Year Warranty Bit Depth - Color - 48-bit internal / 24-bit external, Grayscale - 16-bit / 8-bit external Optical Resolution - 600 x 1200 dpi (Interpolated up to 2400 dpi) Scan speed of 40ppm/66ipm for black and white Scan speed of 40ppm/58ipm for grayscale