Check the listing for details. New Castle Creations Castle Link Quick Connect w/ Heat Shrink. Condition: New. Listed at 21.70 USD. Castle Creations Castle Link Quick Connect, Castle Quick Connect does just that. It detects the presence of a Castle Link adapter on the free lead and switches the controller's signal line from the RX to the Castle Link. Easy as that.New Castle Creations Castle Link Quick Connect w/ Heat Shrink Castle Creations Castle Link Quick Connect, Castle Quick Connect does just that. It detects the presence of a Castle Link adapter on the free lead and switches the controller's signal line from the RX to the Castle Link. Easy as that. Castle Creations Castle Link Quick Connect, Castle Quick Connect does just that. It detects the presence of a Castle Link adapter on the free lead and switches the controller's signal line from the RX to the Castle Link. Easy as that.eBay integration by