Speedy Inks Remanufactured Ink Cartridge Replacement for HP 88XL C9396AN High Yield (Black, 4-Pack) For use in:K5400K5400dnK5400dtnK5400tnK550K550dtnK550dtwnK8600K8600dnL7480L7500L7550L7555L7580L7590L7600L7650L7680L7681L7700L7750 and L7780 Page Yield: 2450* *Average cartridge page yield in accordance with ISO IEC 24711 Shelf Life: 12-18 Months Color: HY Black The use of aftermarket replacement cartridges and supplies does not void your printer's warranty