The HP 913A range (including this magenta cartridge) are compatible with several PageWide printers including the wonderful HP PageWide Pro 377dn. The Hewlett Packard F6T78AE ink cartridge comes with a 3,000 page yield that would make the majority of toner cartridges blush.As a genuine ink cartridge the HP 913A comes with a specially formulated magenta ink that offers results that cannot be touched by any competing products. Be sure to click your specific printer model on this page to see if you can also benefit from compatibility with the high capacity HP 973X too.