I have never opened this item since purchasing it. PFU Fujitsu A4 Scanner ScanSnap iX500 Media Type: USB Scanner Type: Document Brand: Fujitsu Connectivity Technology: Wi-Fi Product Dimensions: 15.9D x 29.2W x 16.8H cm Resolution: 600 Scanning Method: Automatic Document Feeder (ADF), simultaneous duplex scanning Document Capacity: Up to 50 sheets (A4: 80g/㎡) Scanning Area: A4 (A3 only when using a carrier sheet) Interface: USB3.0 / USB2.0 / USB1.1 (Connector: B Type) Wi-Fi: IEEE802.11b/g/n External Dimensions: Width x Depth x Height: 292mm x 159mm x 168mm (excluding protrusions such as the stacker) Power Consumption: Operating: Under 20W / Sleep: Under 1.6W (when connected via USB (Wi-Fi switch off)), Under 2.5W (when connected via Wi-Fi) Optical Resolution: 600dpi