Speedy Inks - 2 Pack Compatible Brother TN336BK High Yield Black Laser Toner Cartridge For use in Brother: HL-L8250CDN, HL-L8350CDW, HL-L8350CDWT, MFC-L8600CDW, & MFC-L8850CDW Page Yield: 4000 | Color: Black Shelf Life: 24-36 Months The use of aftermarket replacement cartridges and supplies does not void your printer's warranty