The HP LaserJet Pro MFP M521dn can be setup in a central location to give users access throughout the office with the network connection. This multifunctional device can print, copy, scan, and fax—eliminating multiple devices scattered throughout your office. The LaserJet Pro MFP M521dn will keep your office productive with first prints in as little as 8.7 seconds and letter-size sheets being produced at 42 copies-per-minute. Create two-sided documents on the LaserJet Pro MFP M521dn with the automatic duplexing. Load 100-sheets into the multipurpose tray and 500-sheets into the input tray located on the front. Each paper source can process a variety of paper sizes, weights, and media types. For even more paper capacity, the LaserJet Pro MFP M521dn has an optional 500-sheet paper drawer that can be added while maintaining the same footprint.Save money with not only the high-yield LaserJet Pro MFP M521dn toner cartridge (HP CE255X) that yields an estimated 12,500 pages, but also save with the Cost-Saving Compatible. The genuine HP LaserJet Pro MFP M521dn standard yield toner cartridge (HP CE255A) will deliver an estimated 6,000 pages. Toner yields are based on 5% page coverage.