The Green‑GO MCXEXT is a dedicated rack extension for the MCX Multi‑Channel Rack Station, engineered to add direct access to twenty‑four additional users or groups through individually assignable multicolour push‑buttons. Four colour TFT touchscreens present channel names, volume and status with exceptional clarity, while per‑channel controls enable Talk, Listen, Call and Cue with immediate precision. Designed to operate as a slave to the MCX, the MCXEXT scales effortlessly for demanding productions by allowing up to nine extensions to be daisy‑chained to a single MCX, delivering a clean, expandable path to large multi‑channel workflows. Integration is robust and straightforward thanks to two EtherCon LAN sockets with an internal 100 MBit switch and a reliable DC power input. Intercom routing, system setup and user preferences are stored in local memory to safeguard configurations, and complete projects can be built and maintained with the free Green‑GO Control software.