Keep your prints clear and consistent with HP 87AS Black LaserJet Toner Cartridge, with an impressive print yield of around 6,000 pages. Compatible with HP LaserJet Enterprise M506dn, M506x, MFP M527dn, MFP M527f, and HP LaserJet Pro M501, M501dn, M501n. Colour: Black Yield: approx. 6,000 pages Compatible with HP LaserJet Enterprise M506dn, M506x, MFP M527dn, MFP M527f, and HP LaserJet Pro M501, M501dn, M501n