This Conlux NBM 3140 bill acceptor is designed for use in vending machines and automated retail systems. Ideal as a replacement unit or spare for vending operators maintaining snack, beverage, or other coin-op machines. ? Bill validator unit shown in photos?? Cash box, harnesses, mounting brackets, or hardware included only if pictured?? No additional accessories unless shown. Condition based on visual inspection unless otherwise noted. May show signs of prior use including scratches or minor cosmetic wear. Operational testing may be limited unless specifically stated. Please review all photos carefully before purchasing. Reprogramming or firmware configuration may be required depending on system setup. Professional installation recommended for proper operation. We’re happy to help! Thank you for viewing our listing!