Ideal for value-conscious customers printing high volumes of professional-quality documents. HP 305X Dual Pack LaserJet Toner Cartridges deliver professional print quality for a better value than individual cartridges. Print more and save more. Stay productive and reduce downtime by keeping an extra toner cartridge on hand.Compatible Printers: HP LaserJet Pro 400 color M 451 dn, HP LaserJet Pro 300 Series, HP LaserJet Pro 400 color MFP M 475 dn, HP LaserJet Pro 300 color M 351 A, HP LaserJet Pro 400 color MFP M 475 dw, HP LaserJet Pro 400 color M 451 nw, HP LaserJet Pro 300 color MFP M 375 nw, HP LaserJet Pro 400 color M 451 dw