Speedy Inks  4-Pack High-Yield Black Cartidge Compatible with Brother TN750 for HL-5400 SERIES/HL-6100 SERIES/DCP-8110 Series Laser Toner Printers compatible with Brother: DCP-8110DN, DCP-8150DN, DCP-8155DN, HL-5440D, HL-5450DN, HL-5470DW, HL-5470DWT, HL-6180DW, HL-6180DWT, MFC-8510DN, MFC-8710DW, MFC-8810DW, MFC-8910DW, MFC-8950DW, & MFC-8950DWT Page Yield: 8,000 | Shelf Life: 24-36 Months Color: Black | Pack of 4 The use of compatible replacement laser toner cartridges and supplies does not void your printer's warranty. 100% Quality Satisfaction Guarantee