Epson E11000XL-PH Photo Scanner (Certified Refurbished) Professional large-format scanning- accommodates reflective mediaup to 12.2" x 17.2" Extraordinary image quality- 2400 x 4800 dpi resolution,Micro Step Drive technologyand a 3.8 Dmax for brilliant clarityand detail Smooth gradations with 48-bitcolor - captures over 4 trillioncolors and 4096 shades of gray Enhanced color with ColorTrue IIImaging - combines superiorimage processing and EpsonMatrixCCD technology for bold,vibrant scans Operating Systems: Windows 8, Windows 7, Windows Vista, Windows XP, Windows XP Professional x64 Edition and Mac OS X 10.5.x - 10.8.x