With output up to42pages per minute and a light, compact form factor, the LexmarkMS431dnprovides fast, dependable performance. Connect via USB orGigabitEthernet and power through big jobs with a1-GHzmulti-core processor, 256MB of memory anda 100-sheetmultipurpose feeder. AvailableExtraHigh Yield Unison tonerprintsup to 20,000 pages, and optional 550-sheet tray supports longer print runs and enhancesmedia flexibility.A steelframedrives durabilityand 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.