"Monochrome Laser MFP - Samsung Multifunction Printer Xpress Print Speed (Black)-21 ppm Fax Speed- 33.6 Kbps Scan Resolution-4800 x 4800 dpi Effective Resolution(Max)-1200 x 1200 dpi Technology-Print Copy Scan Fax Print Language-SPL Processor-600MHz Fax Memory-500 pages Memory-128 MB Paper Capacity-150 sheets Paper Type-Plain Envelope Labels Card Stock Thick Thin Cotton Color Preprinted Recycled Bond Archive Connectivity Hi-Speed USB 2.0 10/100 Base TX Wireless 802.11b/g/n Monthly Duty Cycle-10000 pages Toner Yield-Standard: 1.0K (starter 500) Warranty-1 year Special Features-Near Field Communication (NFC)ECO Mode One-touch WPS (Wi-Fi Protected Setup) FPOT less than 8.5 seconds noise level less than 50dB (printing copying) Power consumption: Sleep Mode: less than <1.2W; Ready: less than 30W; Average: 310W OS Compatibility-Windows 2000/XP/Vista/2003 Server/2008 Server Various Linux OS Mac OS X 10.4 10.6. Compatible with MLT-D111S"