Plustek SmartOffice PL1530. Maximum scan size: 220 x 356 mm, Scanner type: Flatbed, Optical scanning resolution: 600 x 1200 DPI. Standard input capacity: 50 sheets. Standard interfaces: USB 2.0. Weight: 3.78 kg. Minimum hard disk space: 800 MB, Minimum RAM: 256 MB, Minimum processor: 1 GHz