Experienced modelers go to great pains to tie down their servo and
throttle leads, and some find unplugging a Castle controller from the
RX disrupts all their work. Many have asked for something like a Y
connector that gives an open lead for easy Castle linking, but a
traditional Y harness doesn't work when the other branch of the Y is
connected to an RX, the signal line must be disconnected from the RX.
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.