Canon CANOSCAN 3000 42BITS. Maximum scan size: 216 x 297 mm, Optical scanning resolution: 1200 x 2400 DPI, Flatbed scan speed (b/w, A4): 8 sec/page. Standard interfaces: USB 2.0. Weight: 2.5 kg. Minimum system requirements: For USB 2.0 Hi-Speed Windows 2000 Pro, ME, XP (Home/Pro), Compatible operating systems: Windows 2000 Pro, ME, XP (Home/Pro)