If you need more info on whether to purchase a Original Toner or a Compatible toner please check out our Exclusive Product Comparison.
Find more about HP Original Toners.
HP 645A Black/Cyan/Magenta/Yellow Laser Toner Cartridge
Give yourself the advantage with the toner cartridge that’s helped make HP the top choice for small business. Designed to keep your printer running smoothly, you get reliable, tried-and-true HP LaserJet printing technology with every HP cartridge. Comprising up to 70% of the imaging system, you refresh the printer every time you install an HP cartridge. And, because it’s original HP, finding replacement cartridges is easy. The true value is the easy, problem-free printing of original HP.
Compatible printers for the HP 645A LaserJet Toner Cartridge
HP Color LaserJet 5500 Printer
HP Color LaserJet 5550 Printer
Page Yield: 13,000 for Black 12,000 for Color