This Original HP 87A CF287A Black Laserjet Toner Cartridge is designed to work with the following HP printers: HP M527c, M527z, M527dn, M527f, M527dnm, M506dn, M506n, M506x, M501dn, M501n. OEM HP power in your printer! This Original HP 87A CF287A Black Laserjet Toner Cartridge delivers 9,000 pages of sharp, crisp text. The HP 87A CF287A Laserjet Toner Cartridge delivers print quality with amazing text and graphics! The HP87A toner cartridge yields up to 9,000 pages. This means that at 5% page coverage (the average print) you will be able to print 9,000 pages with this 87A cartridge! Using Original/OEM HP 87A toner (CF287A) means the highest quality prints!