The Brother TN900Y is a genuine yellow toner cartridge designed for use in a select few printers including the Brother MFC-L9550CDWT. With an impressive 6,000 page yield the Brother TN-900Y offers users fantastic economy for a genuine toner cartridge. As an original Brother product you can be assured perfect compatibility with your printer and unsurpassed print quality from this Brother TN-900Y cartridge. This exceptional print quality is the result of the custom made toner powder within the Brother TN900Y that has been designed to fuse at the exact temperate produced by your printer.