The genuine HP 305XL is a high capacity black ink cartridge that offers users the lowest cost per page possible from a branded product. Designed to keep all compatible machines (like the HP Deskjet 2720) up and running to the highest standard, the 3YM62AE is a worthy purchase for any lucky owners of these printers. The 240 page yield of the HP 305XL black ink cartridge makes the cost per page surprisingly low for an original unit. Filled with 4ml of original black ink the Hewlett Packard 3YM62AE is guaranteed to give you the very best from your inkjet printer.