HP 507A Toner Ink Cartridge Set Black/Cyan/Magenta/Yellow Genuine LaserJetDescriptionSpecificationsShipping 6,000 colours pages (estimated page yield provided based on 5% coverage or at ISO 2471 pattern normal) 5,500 colours pages (estimated page yield provided based on 5% coverage or at ISO 2471 pattern normal) HP LASERJET ENTERPRISE 500 COLOR M551, HP LASERJET PRO 500 COLOR M570, HP LASERJET ENTERPRISE 500 COLOR MFP M575 Genuine HP Compatible with the following: HP LASERJET ENTERPRISE 500 COLOR M551, HP LASERJET PRO 500