This is the Anton Bauer Gold Plate with 15mm Rail Mount for powering the RED Weapon via Gold Mount battery. Key features include:

Temporary Solution. We’ve put together this Gold Mount plate option while we wait for the Wooden Cable-less Gold Mount Plate for RED DSMC2 Brain to be released.

Anton Bauer Gold Mount. The included battery plate features an integrated 6p LEMO power connector for use with RED Weapon Helium and RED Weapon Magnesium.

Cine Batteries Only. Due to differences in power load, this battery plate option is only compatible with Anton Bauer CINE 90 Gold Mount Batteries. If you try to use an different battery, the voltage will drop to zero and the camera will start shutting down.

15mm Rail Mount. The AB Gold Mount plate is attached to a Wooden Camera Battery Slide with integrated 15mm rail mount, allowing simple attachment to popular shoulder mounts.