Speedy Inks Compatible Toner Cartridge Replacements for HP 80X CF280X High Yield (Black, 2-Pack) For use in Hewlettt Packard: LaserJet Pro 400 M401dn, LaserJet Pro 400 M401dne, LaserJet Pro 400 M401dw, LaserJet Pro 400 M401n, & LaserJet Pro 400 M425dn Page Yield: 6900* | *Average printer cartridge page yield in accordance with ISO 19752 Shelf Life: 24-36 Months Color: HY Black | Pack of 2 The use of aftermarket replacement cartridges and supplies does not void your printer's warranty