Finisher IncludedCopying: Automatic Duplexing: YesMaximum Scan Size: Legal - 8.50" x 14Document & Media Handling: Document Feeder Capacity: 50 sheetsOriginal Type: SheetsSupported Media Type: Cards , Envelopes , Labels , Plain paper , TransparenciesMedia Feeder Capacity: 50 sheetsType: ADFMedia Feeder Capacity: 250 sheetsMedia Feeder Qty: 4Type: Input trayMedia Feeder Capacity: 500 sheetsType: Output trayMedia Feeder Capacity: 100 sheetsMedia Feeder Qty: 2Fax Machine: Fax Resolutions: 100 x 100 dpi, 300 x 300 dpiMax Transmission Speed: 33.6 KbpsAutomatic redialingSpeed Dialing: 100 Station(s)Fax Type: Plain paperFunctions: Copier , Fax , Printer , ScannerMonthly Duty Cycle (max): 200000 impressionsPrinting Output Type: MonochromePrinting Technology: LaserRecommended Monthly Volume: 8000 - 17000 pagesType: Fax / copier / printer / scannerPC Connection: Ethernet 10 Base-T/100 Base-TX/1000 Base-T , Hi-Speed USB , USB hostImage Enhancement Technology: HP ImageREt 4800Printer Drivers Emulations: PCL 5c , PCL 6 , PostScript 2 , PostScript 3Scanning: Color Depth: 30 bitOperating System Support: Apple Mac OS X 10.2.8 , Apple Mac OS X 10.3 , Apple Mac OS X 10.4 or later , MS Windows 2000 , MS Windows Server 2003 , MS Windows Vista , MS Windows XPDimensions: Depth: 28 in Height: 44 in Width: 40 inWeight: 193 lbsENERGY STAR Qualified: YesIn the box: HP LaserJet Enterprise M4555 FSKM MFP CE504A (100-sheet multipurpose tray; 3 x 500 sheet input Feeder with Stand;900-sheet, 3-bin stapling mailbo; HP Jetdirect Gigabit Ethernet embedded print server; Encrypted Hard Disk Drive)90 Day Warranty