SmallRig Top Plate for Sony FX3/FX30 XLR Unit MD3990, is designed to protect the audio unit of the Sony FX30 / FX3 XLR Handle, available to be attached to the top of the handle via the adapter or be secured via a 3/8''-16 screw of the Sony FX30 / FX3 XLR Handle Extension Rig MD3490. It perfectly fits the top of Sony FX30 / FX3 XLR Unit with built-in cushions for full protection, also equipped with multiple 1/4''-20 threaded holes and a built-in cold shoe mount for attaching other devices, such as a microphone, LED light, etc.