Monochrome Laser Printer - Samsung Printer Xpress Print Speed (Black)-21 ppm Effective Resolution(Max)-up to 1200 x 1200 dpi Print Language SPL (Samsung Printer Language) Processor-400 Mhz Memory-64 MB Paper Capacity-150 sheets Paper Type Plain Envelope Labels CardStock Thick Thin Cotton Color Preprinted Recycled Bond Archive Connectivity Hi-speed USB 2.0 802.11b/g/n Wireless Monthly Duty Cycle 10000 pages Toner Yield 0.5K Starter 1K Standard Yield Warranty-1 Year Standard (Parts and Labor) Country Of Origin-China Special Features-Near Field Communication(NFC) Tap & Print WPS button (Wi-Fi protected setup) Power button on front FPOT less than 8.5 seconds Software included: Driver AnyWeb Print Easy Printer Manager Power: <310W printing <1.2W Standby OS Compatibility-Windows 2000/ XP/ Vista/7/ 2003 Server/ 2008 Server Mac OS X 10.3 10.6 Various Linux OS. Compatible with MLT-D111S