4 Pack HP 646 LaserJet CM4540, Enterprise CM4540 Compatible Laser Toner Cartridges Replacements:
1 HP 646X CE264X Black Laser Toner Cartridge
1 HP 646A CF031A Cyan Laser Toner Cartridge
1 HP 646A CF032A Yellow Laser Toner Cartridge
1 HP 646A CF033A Magenta Laser Toner CartridgeCompatible Printers:
HP - Color LaserJet Series
Color LaserJet Enterprise CM4540 MFP, Color LaserJet Enterprise CM4540f MFP, Color LaserJet Enterprise CM4540fskm MFP