Top Dog Compatible Replacement for Brother TN570 Toner Cartridge, Brother TN540 High Yield Toner Cartridge Black (7,000 Page Yield) for use with Brother DCP-8040 Brother DCP-8045D Brother HL-5140 Brother HL-5150D Brother HL-5150DLT Brother HL-5170DN Brother HL-5170DNLT Brother MFC-8120 Brother MFC-8220 Brother MFC-8440 Brother MFC-8640D Brother MFC-8840D Brother MFC-8840DN Printers COMPATIBILITY LIST: Brother DCP-8040 Brother DCP-8045D Brother HL-5140 Brother HL-5150D Brother HL-5150DLT Brother HL-5170DN Brother HL-5170DNLT Brother MFC-8120 Brother MFC-8220 Brother MFC-8440 Brother MFC-8640D Brother MFC-8840D Brother MFC-8840DN WARRANTY: Lifetime/100% Satisfaction Guarantee, 24/7 Customer Support PAGE YIELD: 7,000 Pages based on 5% coverage of Letter/A4 PRODUCT TYPE: Alternative Replacement for OEM TN-570 Toner Cartridge PACKAGING: 1x Toner Cartridge