Fujitsu ScanSnap S510. Maximum scan size: 216 x 356 mm, Scanner type: Sheet-fed, Sensor type: CCD. Auto document feeder (ADF) input capacity: 50 sheets. Standard interfaces: USB 2.0. Weight: 2.7 kg. Operating temperature range (T-T): 5 - 35 °C, Operating relative humidity range: 20 - 80 %