The product is a Genuine HP 45 Ink cartridge (model 51645A) in a fresh, new factory sealed box with an expiration date of February 2012. It is specifically designed for HP printers and utilizes inkjet print technology for high-quality black printing. This single unit cartridge is compatible with various HP printer models and has a page output of 930. Manufactured in Ireland, this genuine HP product ensures reliable and consistent printing performance.