TN750, TN-750 compatible with Brother HL-6180DWT, MFC-8510DN, MFC-8710DW, MFC-8910DW, MFC-8950DW, MFC-8950DWT Ink4work TN750, TN-750 Compatible Toner Cartridge. ISO9001 Certified (NOT MADE BY Brother) Yield: up to 8000 pages based on 5% coverage of lettle size paper. Sold by ink4work INK4WORK offer 30 days money back. 180 days factory warranty against product defect