Plustek OpticPro ST640. Scanner type: Flatbed, Sensor type: CCD, Input colour depth: 48 bit. Maximum scan area (ADF): 216 x 297 mm. Standard interfaces: USB 2.0. Width: 440 mm, Depth: 265 mm, Height: 79 mm. Power consumption (typical): 18 W, Power consumption (standby): 5 W