W850dn Monochrome Laser Printer With Duplex PrintingIdeal for all your large-volume printing needs, this laser printer helps you reach your productivity potential. Rapid first-page-out and page-per-minute speeds keep your work flowing. High resolution enhances important business documents. Zip through complex projects with ease, thanks to the powerful processor and impressive memory. Print more responsibly with eco-conscious features, like power-saving Eco Mode and paper-saving built-in duplex printing. Convenient direct USB port lets you print PDFs and other image files from a portable memory device. Maximum Print Speed (Black): 50 ppm; Network Ready: Yes; Printer Type: Laser.