Fujitsu ScanSnap S1500. Maximum scan size: 210 x 297 mm, Scanner type: Sheet-fed, Optical scanning resolution: 600 x 600 DPI. Auto document feeder (ADF) input capacity: 50 sheets. Scanning media types supported: Business Card, Plain paper, Auto Document Feeder (ADF) media weight: 52 - 127 g/m². Standard interfaces: USB 2.0. Width: 292 mm, Depth: 159 mm, Height: 158 mm