With the HP Officejet Pro X451dn Printer, you can print professional-quality color up to twice the speed and half the cost per page of color lasers. Plus, get auto two-sided printing and a 500-sheet input tray, so you can load less and print more. The next generation of printing is here. Thrive with a new standard in work team productivity. HP Officejet Pro X Series desktop printers deliver vivid color at breakthrough speeds while saving you up to half the cost per page of color lasers.