The OKI OKIPAGE 20 Plus is a workgroup printer-LED-monochrome with up to 20 pages-per-minute max print speed. This machine has a max resolution of 600 x 1200 dpi and an optional duplex. This has a 16 MB RAM installed which is upgradable to 80 MB. OKIPAGE 20 Plus has a monthly duty cycle of 65000 pages, 630 total media capacity, an IEEE 802.3, Plug & Play, and EPA Energy Star compliant. This device is an outstanding choice to your home or small office.