Plustek SmartOffice PL2546. Maximum scan size: 216 x 297 mm, Scanner type: Flatbed, Optical scanning resolution: 1200 x 1200 DPI. Weight: 4500 g. Power consumption (typical): 18 W, Power consumption (standby): 3.2 W. Certification: CB, CE, FCC, UL/cUL, TUV-GS, C-Tick, BSMI. Minimum hard disk space: 800 MB, Minimum RAM: 256 MB, Minimum processor: 1 GHz