The HP 923 Black Ink Cartridge is an original product by HP designed to work with specific OfficeJet printers, including the 8120 and Pro 8130 series. This high-yield cartridge provides a page yield of up to 500 pages and is ideal for those looking for a reliable and efficient printing solution. The black ink cartridge is genuine and compatible with the mentioned HP printer models, ensuring compatibility and quality results for your printing needs.