This Hewlett Packard CF363X cartridges offer you the very best quality results and the lowest cost per page of any genuine magenta toner cartridge for your printer. This is achieved thanks to the impressive 9,500 page estimated yield of the HP 508X toner cartridge.With a special toner powder designed by Hewlett Packard to fuse at the exact temperatures produced by your printer, the CF363X toner cartridge minimises waste and produces prints of exceptional quality. This HP 508X magenta toner cartridge is compatible with several excellent printers including the HP Colour LaserJet Enterprise M553n.