This is compatible toner for Brother OEM Part #TN450/TN420. The page yield of this Brother toner is 2,600 pages based on 5% page coverage. This printer toner is made of high quality standards and is guaranteed to meet or exceed OEM specifications. Toner Booth provides 100% guarantee all of its Compatible Cartridges and re-manufactured Cartridges. You will also receive free shipping on all US order over $50.