Canon DR-2510C. Maximum scan size: 216 x 356 mm, Scanner type: Sheet-fed, Optical scanning resolution: 600 x 600 DPI. Auto document feeder (ADF) input capacity: 50 sheets. Standard interfaces: USB 2.0. Bundled software: ISIS / TWAIN (Windows 2000/ XP Pro/ XP Home/ Vista) Capture Perfect 3.0 Adobe Acrobat 8 Standard. Weight: 2400 g