Samsung ML-2551N Network Ready Workgroup Monochrome Laser Printer Mono Laser Workgroup Printer with Built-in Auto Duplexing Up to 25 ppm Print Speed and 1200 x 1200 dpi Resolution Network Ready and Compatible with Windows/Macintosh/ and Linux OS Systems 100000 Pages Per Month Duty Cycle and Upgradable Memory 29.80 lbs (WxLxH) 17.20" x 15.20" x 12.80"