We offer LD compatible cartridges and supplies for your HP LaserJet Pro 400 M451dn specially engineered to meet the highest standards of quality and reliability. LD Products stands behind all of its products with a 100% Satisfaction, 100% Satisfaction Guarantee. Now LD is proud to announce that we're offering Xerox brand replacement cartridges for HP. A cost effective solution to high-quality printing, Xerox Premium Replacement cartridges are the ""OEM alternative"" and are backed by the Xerox name, performance standard and Satisfaction Guarantee. Each eco-friendly cartridge from Xerox is manufactured in the USA. We also offer original Hewlett Packard laser cartridges for the LaserJet Pro 400 M451dn which offer the consistent quality you can expect from HP.