Epson Perfection 3590. Maximum scan size: 216 x 297 mm, Scanner type: Flatbed, Optical scanning resolution: 3200 x 6400 DPI. Standard interfaces: USB, Optional connectivity: USB. Weight: 3.2 kg, Weight: 3200 g. Operating temperature range (T-T): 5 - 35 °C, Operating relative humidity range: 10 - 80 %. Minimum system requirements: USB 2.0, Compatible operating systems: Microsoft Windows 98SE / Me / 2000 Professional / XP Home Edition / XP Mac OS X 10.2.7