Brother Genuine TN850 High Yield Mono Laser Black Toner Cartridge.
Professional mono laser print quality you can consistently rely on for 8,000 pages. (Approx. toner cartridge yields in accordance with ISO/IEC 19752 (letter/A4)).
Intelligently engineered to work in seamless unison with your Brother printer.
Brother Genuine toner produces crisp, sharp prints that withstand the test of time.