Make sure your Brother printer performs to its high design specification and continues to produce the high quality results that you expect by choosing a genuine replacement toner cartridge. For use with HL-L8260CDW, HL-L8360CDW, DCP-L8410CDW, MFC-L8690CDW and MFC-L8900CDW printers, the TN421BK toner cartridge is formulated for high resolution and will produce quality greyscales and crisp, bold blacks. Lasting for approximately 3000 printed pages, you will receive high quality every time.