Epson Perfection V850 Pro. Maximum scan size: 8.5 x 11.7" (216 x 297 mm) Optical scanning resolution: 4800 x 6400 DPI Enhanced scan resolution: 12800 x 12800 DPI. Scanner type: Flatbed scanner Product color: Black. Sensor type: CCD Light source: ReadyScan LED Maximum duty cycle: 100000 pages per month. Maximum ISO A-series paper size: A4 Scanning media types supported: Plain paperTransparencies. Standard interfaces: USB