Speedy Inks Compatible Toner Cartridge Replacement for Sharp AR-455NT | AR-455MT (Black) For use in Sharp: AR-M355N, AR-M355U, AR-M455N, AR-M455U, MX-M350N, MX-M350U, MX-M450N & MX-M450U Page Yield: 35,000 | Color: Black Shelf Life: 24-36 Months The use of aftermarket replacement cartridges and supplies does not void your printer's warranty