Corby Corby 6500 6500 Series Control Board JMAC# CORBY-6500 The Corby 6500 is a replacement circuit board that plugs on the rear of all 6500 series keypads. UPC: 769586065000Also known as: CY-6500 For more information about the Corby 6500, please contact us.2 relay outputs, 2 voltage outputsRequest-to-exit, door... MSRP: Was: Now: $89.00 Add to Cart