HP 646X High Yield Black Original LaserJet Toner Cartridge, ~17,000 pages,

Compatible with HP Color LaserJet Enterprise CM4540 MFP Also works with CM4540f MFP and CM4540fskm MFP Minimize interruptions with this high-capacity toner cartridge designed for frequent printing Achieve consistent, professional results on a wide range of papers for office printing. Manage your printing with time-saving solutions