Plustek OptikPro ST28 . Maximum scan size: 216 x 297 mm, Scanner type: Flatbed, Optical scanning resolution: 1200 x 2400 DPI. Standard interfaces: USB 2.0. Bundled software: NewSoft Presto! Mr. Photo 4.0 NewSoft Presto! ImageFolio 4.5 NewSoft Presto! PageManager 7.10. Weight: 2600 g. Power consumption (typical): 15 W