Black Top Quality High Capacity Laser Toner Cartridge Compatible with HP C9720A / 641A For Use In HP Colour LaserJet 4600 4600n 4600dn 4600dtn 4600hdn 4650 4650n 4650dn 4650dtn 4650hdn 4610n printer (s)Colour: Black Yield/Capacity: 9,000 @ 5% Coverage