Brother DR-500 Drum Unit, 20,000 Page Yield Approx. 20,000 page yield For use with DCP-8020, 8025D For use with HL-1650, HL-1650N, HL-1650NPLUS, HL-1670N, HL-1850, HL-1870N, HL-5040, HL-5050, HL-5050LT, HL-5070N, MFC-8420, MFC-8420D, MFC-8420DN, MFC-8820D, MFC-8820DN, MFC-8820DTN.