Features a first page as fast as 4.5 seconds and output up to 55 pages per minute. • Output up to 55 pages per minute. • First page as fast as 4.5 seconds. • 1 GHz dual-core processor, 512 MB standard and up to 4.5 GB memory. • With new front power button and USB port, 2.4" color LCD/keypad to monitor and configure system settings and single-door access to parts and supplies, it's easier than ever to get things done. • ADA-compliant trays have push-button sliders and open with one hand, requiring low force and no twisting. The Lexmark MS821n brings reliability and performance to the large-workgroup monochrome printer class with a first page as fast as 4.5 seconds and output up to 55 pages per minute. Its robust paper handling includes reliable feeding of a wide range of media types and sizes, up to 4,400 sheets of input and optional finishing. Plus, its long-life imaging unit and fuser reduce downtime. And whether you connect via Ethernet, USB or mobile, Lexmark-exclusive full-spectrum security helps protect your device, your network and your best ideas. Maximum Print Speed (Black): 55 ppm; Print Resolution (Black) (Width x Height): 1200 x 1200 dpi; B&W or Color Output: B&W; Printing Type: Laser.