This Conlux CV1022 U5M bill validator acceptor is a new in box, never used item. It comes with the needed harness, stickers , Installation Guide , and program card . It is compatible with a 24VDC power source and the MDB communication protocol. This bill acceptor / validator can 4 way accept bills ranging from $1 to $20. It is the best known ,  designed for use in vending machines and dispensers in the beverage and snack industry, as well as in restaurant and food service settings. The brand of this item is Conlux and the model number is CV1022 U5M. We purchased too many in error. Our loss is your gain. We shall carefuy pack and promptly ship it or them to you. Box may have been opened to insure full contents .  There are no returns.