2 x Top Quality Laser Toner Cartridge Compatible with HP CF287A / 87A for HP LaserJet Enterprise Flow MFP M527c, Flow MFP M527z, M506dn, M506n, M506x, MFP M527dn, MFP M527f, HP LaserJet Pro M501dn, M501n, MFP M527dnm Printer (s) Colour: Black Yield/Capacity: 2 x 9,000 @5% Coverage