The Onn HP 61 Black Ink Cartridge is a compatible product designed specifically for HP printers. With an expiration date of 09/2025, this unit guarantees high-quality printing results with every use. The black ink cartridge is ideal for producing crisp and professional-looking documents and images, perfect for both personal and professional printing needs. Compatible with the HP 61 model, this ink cartridge is a reliable and cost-effective choice for those looking to maintain their printer's performance.