The Genuine HP 27 Black Ink Cartridges Twin Pack C9508FN is a set of original HP ink cartridges designed for use with specific HP Deskjet printers. The cartridges are genuine HP products, ensuring high-quality printing results. With an expiration date of 03/2013, these black ink cartridges are compatible with various HP printer models and are ideal for producing crisp and professional black prints. The twin pack includes two cartridges, providing a convenient and cost-effective printing solution for your document and image printing needs.