Compatible with fewer printers than the lower capacity HP 913A range, this high capacity black HP 973X ink cartridge is for exceptionally high yield printer users. With an estimated page yield of 10,000 pages the L0S07AE keeps printers up and running for longer than almost any inkjet printer on the market.This original PageWide L0S07AE cartridge by Hewlett Packard offers a quality of print that is unbeaten by any alternative products on the market and genuinely gives you the most from your printer. This high capacity genuine HP 973X black ink cartridge offers you the lowest cost per page of any ink cartridge for your machine.