With its powerful processor, 46 page-per-minute output, enhanced security and built-in durability, the MS521dn supports the success of mid-size workgroups in all their mono printing. Ready when you are Robust and reliable, Lexmark printers are built to work anywhere from showroom to warehouse with few interventions. Keep going with long-life components, replacement cartridge yields up to 25,000 pages and a maximum input capacity of 2000 pages. Full-spectrum security Lexmark's comprehensive approach to product security is a design and engineering mandate across our entire product portfolio. Our security features help keep your information safe-in the document, on the device, over the network, and at all points in between. That's why Keypoint Intelligence-Buyers Lab honoured Lexmark with a prestigious BLI PaceSetter award for Document Imaging Security. And this Lexmark product enables you to be GDPR ready. Performance and value Get mono printing at up to 46 pages per minute, plus standard two-sided printing, at an affordable price. Durability and long-life components keep your maintenance costs low, too. Energy efficiency Make every watt count with energy management features that reduce power consumption whether the printer is active or in sleep mode. Lower fusing temperature and automatic management of processor cores based on workload help meet rigorous ENERGY STAR 2.0 requirements. That benefits the planet and your budget. The definition of clear text Some laser printers struggle to print grey text that's easy to read-not the MS520 series. Its innovative font outlining technology makes even the smallest grey text crisp and clear.