AZTECH 2Pack 8,000 Pages Yield Compatible Toner Cartridge Replaces Brother TN-750 TN750 TN-720 for HL-5440D HL-5450DN HL-6180DWT HL-5470DW MFC-8510DN MFC-8710DW DCP-8810DW DCP-8910DW DCP-8950DW Includes 2 pack High Yield Black Toner cartridge (Package with instruction) Page Yield: 8,000 pages per cartridge at 5% coverage (Letter/A4). Keep it ventilative and dry and cool under normal temperature. Used for Printers Brother HL-5440D 5450DN 5450DNT 6180DW 6180DWT 5470DW 5470DWT, MFC-8510DN 8520DN 8710DW 8810DW 8910DW 8950DW 8950DWT, DCP-8110DN 8150DN 8155DN 8250DN Lifetime 100% guarantee and Free-replacement warranty on any products you buy from Aztech. The best toner for your print and the best service for you in Aztech. All Aztech products are manufactured in facility certified with ISO9001, ISO14001, ROHS, STMC, CE and MSDS. NOT OEM.