2 Black Compatible Laser Toner Cartridges Replacement for HP CF287A / 87A Page Yield: Around 9000 Pages per Toner Cartridge @ 5% Standard Coverage Rate. on A4 Paper Size. Manufactured with the highest quality and standards by ISO, CE, & REACH manufacturer for best printing performance matching the standards of OEM. For HP LaserJet Enterprise M506dn / M506n / M506x and MFP M527z / M527f / M527c / M527dn / 501N / M501dn PRINTOXE® Brand 100% Compatible in Retail Package Shown in Image. Shelf Life exceeds 36 Months.