The 3PK TN750/TN720 Compatible Replacement Black Toner for Brother Laser Printers is a high-quality drum unit certified with ISO 9001 and ISO 14001. It is compatible with various Brother printer models such as HL-5400, MFC-L2760DW, and DCP-8110DN. With a page output of up to 3,000 pages based on 5% coverage, this toner cartridge set includes 3 units and comes with a manufacturer warranty of 3 years. The new chip ensures compatibility and reliable printing performance for your Brother laser printer.