With output up to 42 pages per minute and a light, compact form factor, the Lexmark MS431dw provides fast, dependable performance. Connect via USB, Ethernet, or standard Wi-Fi and power through big jobs with a 1GHz multicore processor, 256MB of memory, and a 100-sheet multipurpose feeder. Available extra-high-yield Unison toner prints up to 20000 pages, and optional 550-sheet paper tray supports longer print runs. A steel frame drives durability and long-life reliability, while standard two-sided printing saves paper, the lifetime fuser minimizes maintenance, and Lexmark full-spectrum security helps protect your network and proprietary information. This single-function printer focuses exclusively on printing, so it is easy to use. Laser printing with up to 600 x 600 dpi resolution ensures detailed, high-quality prints. 42 ppm in black/white with a monthly duty cycle of 80000 pages. USB, LAN, and Wi-Fi connectivity helps enhance productivity. Dimensions: 8. 7"H x 14. 5"W x 14. 3"D. 350-sheet input capacity; types of media supported include envelopes, transparencies, and labels. 1GHz processor and 256MB of memory ensure speed and accuracy. Help save paper and create two-sided documents with automatic duplex printing. Two-line all points addressable (APA) monochrome LCD enables easy setup and navigation. Meets or exceeds ENERGY STAR, ICES-003 Class B, BSMI Class B, US FDA, UL 60950-1, FCC Class B, cUL CAN/CSA-C22. 2 60950-1, NOM, CB EN/IEC 60950-1, CB EN/IEC 60825-1, CE DoC (EN 62301 Class B, EN 62311, CE EN/IEC 60950-1, CE EN/IEC 60825-1, EN 61000-3, EN 55022 Class B, EuP, EN 55024, UL), EFTA (CE), KCC, CCC, CECP, CEL, C-Tick DoC, UL-AR, KC mark, UL GS mark, EC 1275, MET-I, ISO 532B, ECMA-370, TED, GOST-R, SII, TER, DE-UZ 205, Wi-Fi Certified standards. 1-year manufacturer limited warranty