This external 12 V power supply provides a stable direct current source for Green‑GO multi‑channel desktop and rack stations when Power over Ethernet is not available or intentionally separated from the audio network. It is matched to the electrical requirements of legacy MCD and MCR stations and connects through a mini DC plug of 5.5 mm for a secure and reliable fit. Using the supply allows you to decouple device power from the switch, maintain intercom availability during network maintenance, and build simple redundancy with an uninterruptible power feed. The unit delivers a continuous 1.8 A that preserves headroom for full duplex communication, cue signalling and local monitoring, supporting consistent performance in broadcast control rooms, theatre racks and touring packages. Its compact form factor suits desk, wall and rack installations, and its regulated output ensures clean audio paths without introducing noise into the intercom mix.