Plustek MobileOffice S400. Maximum scan size: 216 x 297 mm, Scanner type: Pen, Optical scanning resolution: 600 x 600 DPI. Standard interfaces: USB 1.1. Width: 274 mm, Depth: 33.8 mm, Height: 47 mm. Power consumption (typical): 2.2 W, Power consumption (standby): 1.2 W. Certification: WEEE, RoHS.