LD Remanufactured Toner Cartridge Replacement for HP 308A Q2670A (Black) Page Yield: 6,000* | Shelf Life: 24-36 Months | *Average cartridge page yield in accordance with ISO IEC 24711 Includes electronic smart chip for accurate toner level monitoring The use of LD replacement ink and toner cartridges does not void your printers warranty All LD branded products are backed by a 100% satisfaction and LIFETIME guarantee For use in Color LaserJet 3500, 3500n, 3550, 3550n, 3700, 3700dn, 3700dtn and 3700n