Speedy Inks Remanufactured Ink Cartridge Replacement for HP 901XL High-Yield (2 Black and 2 Color, 4-Pack) Set includes - 2 x HP 901XL Black (CC654AN), 2 x HP 901 Color (CC656AN) Page Yield HY Black - 700 | Shelf Life - 12-18 Months| Page Yield Color - 360 | Shelf Life - 12-18 Months Cost Per Page for HY Black - 2.86 cents | Cost Per Page for Color - 5.55 cents For use in HP: G510a, G510g, G510n, J4524, J4540, J4550, J4580, J4624, J4660, J4680, J4680c, 4500 The use of aftermarket replacement cartridges and supplies does not void your printer's warranty