Complete Set of 4 Toner Cartridges for 507X; Black CE400X / Cyan CE401A / Yellow 402A / Magenta CE403A Page Yield: Around 11,000 Pages by Black Cartridge & 6,000 Pages per Colour Toner at Standard Coverage Rate of 5% 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 500 Color M551 M551n M551dn M551xh and MFP-570 MFP-570dw MFP-570dn MFP-M575 MFP-M575f & MFP-M575dn Printers PRINTOXE® Brand 100% Compatible in Retail Package Shown in Image. Shelf Life exceeds 24 Months.