HP CE264X - HP 646A black toner cartridge for Color LaserJet CM4540 MFP series printers. Approx 18k page yield. Goes with CF031A, CF032A and CF033A color cartridges.
HP 87X High Yield Black Original LaserJet Toner Cartridge, CF287X, 18K For Use In: HP LaserJet Enterprise Flow MFPM527C, MFPM527Z HP LaserJet Enterprise M506DN, M5