Clearprint &copy; 131A / CF210X 2-pack of Compatible Black Toner Cartridges for HP LaserJet Pro 200 Series, MFP M276nw, M251nw printers 2 New Premium Compatible Black Cartridges Page Yield: black cartridge - 1,600 pages HP OEM Part #s: CF210X for HP LaserJet Pro 200 Series, MFP M276nw, M251nw printers