The product is a new, sealed Genuine HP 44 Yellow Ink Cartridge with model number HP 51644Y. It is compatible with HP printers and uses inkjet print technology. The cartridge is in yellow color and has an expiration date of 07/07. This OEM product is designed to deliver high-quality printing performance and is ideal for use in various HP printer models. WARRANTY - 2007. The date listed is the expiration of the HP warranty, not the ink. Expired ink works for years after this date. SAVE BIG! No HP limited warranties are included or implied.