The HP 45 Large Black Ink Cartridge 51645A is a genuine and sealed product manufactured by HP in Singapore. Specifically designed for HP Deskjet printers, this ink cartridge utilizes inkjet print technology for high-quality, crisp black printing. With an expiration date of 1/02, users can ensure their prints will be consistently sharp and professional. This genuine/original cartridge is a reliable choice for those looking to maintain their printer's performance and achieve excellent print results.