For the following Printers (Click to link)
HP Colour LaserJet Enterprise CM4540 MFP
HP Colour LaserJet Enterprise CM4540f
646A HP Yellow Toner for the colour Laser Jet
HP Color LaserJet Enterprise CM4540 Multifunction Printer.HP Color LaserJet Enterprise CM4540f Multifunction Printer.HP Color LaserJet Enterprise CM4540fskm Multifunction Printer.
Approximately 12,500 pages @ 5% coverage.