1 Pack Yellow Compatible Brother TN339 Super High Yield Replacement Toner Cartridges are for use in the following Brother HL series: HL-L9200CDW, HL-L9200CDWT and the following Brother MFC series: MFC-L9550CDW, and the MFC-9550CDWT. Our compatible cartridges are made with the highest quality materials. These cartridges are made at an ISO-9001 certified factory so you can expect premium quality printing. Laser Tek Services® Compatible Replacement Toner Cartridges offer an alternative to the expensive and over priced OEM toner cartridges. Compatible Cartridges are cheap, economical, and GREEN alternative for getting your printer up and running again!