This is a compatible cartridge for Brother TN439Y toner cartridge guaranteed to perform with Brother Laser Printers. It replaces the genuine (OEM Brother TN439Y toner cartridge. This toner cartridge is made with top quality components and new toner to give you the highest quality printouts every time. This compatible cartridge for for Brother TN439Y toner cartridge is specially engineered to meet or exceed the highest standards of quality, reliability and page yields. Although this cartridge is not made or endorsed by Brother, it offers customers an economical alternative to expensive OEM Brother TN439Y cartridges and comes with our satisfaction guarantee. This toner cartridge is compatible with HL-L8360 / L8360 / L9310 / MFC-L8900 / L9570 and many more