Technology : Monochrome laser beam printing Max Resolution: 600 x 600 dpi Print Speed : 43 ppm mono (A4) Automatic Duplexing : Yes Media Sizes : A4, B5, A5 ,A5 landscape, A6, LGL, LTR, Executive, 16K Total Media Capacity : 650 sheets Interface : High-Speed USB 2.0, USB Host , 10Base-T / 100Base-TX / 1000Base-T Ethernet Monthly Duty Cycle (max) : Max.150,000 pages per month RAM: N/A