Interface   USB 2.0 Technology   Advanced Color CIS (Contact Image Sensor) Resolution   Hardware optical 600 dpi (1200dpi software interpolated) Scanning Modes   Color: Input 48-bit; Output 24/48-bit     Grayscale: Input 16-bit; Output 8/16-bit     B/W: 1-bit Max. Scanning Area   Maximum: 105mm x 148mm (4.1" x 5.8")     Minimum: 33mm x 43mm (1.3" x 1.7") Net Weight   Approx. 194g / 0.4 lb (scanner only)  Dimensions (D x W x H)   174.5 x 60.5 x 38.5 mm / 6.9" x 2.4" x 1.5" (scanner only) Scan Speed   7 sec @ 300 dpi, gray mode     8 sec @ 300 dpi, colour mode Scan Mode   Single Pass Cable Length   150 cm Power Consumption   2.5W (500mA x 5V) Paper Sensor   Photo interrupter (reflective type) Regulatory Certificates   CE, FCC-B, C-Tick, BSMI       System Requirements   IBM Compatible PC, with Pentium 166 MHz or faster CPU     CD-ROM Driver     One available USB Port     64 MB RAM (128 MB recommended)     250 MB free HDD space     High Color graphic card (VGA or higher)     Microsoft Windows XP, Me, 98, 2000.Vista