About this itemPrinter Type- Laser, Functionality- Print Only, Printer Output- ColourConnectivity- USB 2.0, WiFiCompatibility:Windows 10, Windows 8.1, Windows 7, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 R2, Windows Server 2008, Mac OS X 10.9.5 & upx1, Linuxx1Pages per minute - 21 (A4) black, FPOT- 10.4s/10.5s sec (Mono/Colour), Duplex-Yes; Print Language- UFR II, PCL 6, Adobe PostScript 3Ideal usage - Office, Monthly Duty Cycle- 30,000 pagesConnectivity TechnologyWi-FiPrinting TechnologyLaserSpecial FeatureUsbColourWhite / BlackModel NameImageCLASS LBP 621CWPrinter OutputColourMaximum Print Speed (Colour)18 ppmMax Print speed Monochrome18 ppmOperating SystemMac,Windows,Windows 10,Windows 7,Windows 8