Technology : Colour Laser Max Resolution (B/W) : 1200 x 1200 dpi Print Speed (B/W) : Up to 33 ppm Automatic Duplexing : Yes Media Sizes : A6, Oficio, 7 3/4 Envelope, 9 Envelope, JIS-B5, A4, Legal, A5, Letter, Statement, Executive, Universal, DL Envelope, Folio, 10 Envelope Total Media Capacity : 250 sheets Interface : Gigabit Ethernet (10/100/1000), Front USB 2.0 Specification Hi-Speed Certified port (Type A), 802.11b/g/n Wireless, USB 2.0 Specification Hi-Speed Certified (Type B) Monthly Duty Cycle (max) : 85000 pages RAM (Max Supported) : 1024 MB