Technology : Laser Max Resolution: 1200 x 1200 dpi Print Speed : Up to 43 ppm Automatic Duplexing : Automatic Media Sizes : A4, Envelopes, 10 x 15 cm Total Media Capacity : Maximum output capacity (sheets) Up to 250 sheets, Maximum input capacity (sheets) Up to 2300 sheets Interface : 1 Hi-Speed USB 2.0 device port, 2 Hi-Speed USB 2.0 host ports, built-in Fast Ethernet 10Base-T/100Base-Tx, Gigabit ethernet 1000Base-T Monthly Duty Cycle (max) : Up to 150,000 pages RAM: 512 MB