The Corning Fiber Module CCH-UM12-72-89G is a new, open box unit designed for networking and computer cable use. Specifically compatible with the Corning CCH-UM12-72-89G model, this module is a single unit that offers high-quality fiber optic connectivity. With the trusted Corning brand name and reliable performance, this module is a valuable addition for those looking to enhance their networking capabilities with a reputable and efficient cable solution. I have a total of 53 of these available.