Canon CanoScan N670U Flatbed Scanner - USB Interface Scanner Type: Flatbed, color and monochrome; Scanning Element: Contact Image Sensor (CIS) Light Source: Three-color RGB LEDs; Interface: USB; Operating Temperature: 41 to 95 Scanning Mode: Color: 48- bit internal/ 24- bit external; Grayscale: 16-bit internal/8-bit external; Black and white; Text enhanced Max. Document: Size Letter ( 8.5 x 11.7) maximum; Max. Power Consumption: 2.5 W (1.25W Standby) OS Compatibility: ScanGear CS-U for Mac OS X ( 8.6 to 9X); Mac OS X (Classic mode only); ScanGear CS-U for Windows 98/Me/2000 Professional Software: ScanGear CS-U (Windows/Mac), ScanGear Toolbox (Windows/Mac),ArcSoft PhotoStudio, ArcSoft PhotoBase and ScanSoft OmniPage OCR Dimensions (W x D x H) 10.1 x 15.1 x 1.4; 1-year limited warranty