Although it may not have the same impressive page yield as the HP 508X, this standard capacity HP 508A toner cartridge still packs a punch. This CF363A cartridge contains enough official Hewlett Packard toner to print an estimated 5,000 pages.Designed to get you up and printing with the lowest initial cost the Hewlett Packard CF363A is offered at a reduced price to compensate for the higher cost per page. Like all original toner cartridges the HP 508A offers the best print quality, the hardest wearing prints and a minimum of wastage to those who opt to use them. Just like the HP 508X magenta cartridge, the HP 508A cartridge is fully compatible with many different printers (including the HP Colour LaserJet Enterprise M553dn).