Deity SPD-HR21 4-Pin Push-Power to 2.1mm DC Cable

The SPD-HR21 takes a Hirose-compatible distro output to a 2.1 mm DC barrel jack, the connector Lectrosonics uses on the UCR411, UCR401, UCR211 and UCR201 receivers. It will drive any 2.1 mm device electrically, but the receivers are what it was cut for.

It is unregulated and outputs 9 to 18 V, tracking the source rail. That is fine for equipment with a wide input range and wrong for anything that specifies a regulated supply, so check the device before wiring it in.