This HP 338 black ink cartridge is designed to provide darker, laser-quality black text that is resistant to highlighter ink smear, offering enhanced durability and superior fade protection. This cartridge will print up to 450 A4 pages. Compatible with: HP Deskjet 5740, 6520, 6540, 6840 HP Photosmart 2610, 2710, 8150, 8450 HP PSC 2350 HP Officejet 6210, 7310, 7410