HP 646X CE264X Black Toner Cartridge Enterprise CM4540 CM4540F FSKM MFP ce264xc
COMPATIBLE FOR HP LASERJET ENTERPRISE CM4540 MFP / CM4540f MFP / CM4540fskm MFP. MAXIMUM FILLED! nearly double the amount of TONER, hence giving you twice the amount of prints then usual. UK Remanufactured - no to cheap imitation imports.