Anton Bauer - There are 2 modules, the Dual and the Single.

The Dual allows the mounting of 2x Batteries on the rear, and supplies the Sled with 12v and 24v.

The Single allows the mounting of 1x battery to either the rear, bottom or front of the base system, for 24v you would need 2x Single modules, and 24v conversion cable.

Anton Bauer Dual

This is a Standard mount for operators working with 24v film cameras, for extra bottom weight and power an additional single mount should be mounted to the base or front.

Anton Bauer Single

This Single mount can be used either on its own on the rear, ideal when working with larger batteries and in 12v, or mounted on the base or front with the Dual mount for more power and weight.

These mounts can be used together to power the sled, for 24v you need to use the optional 24v conversion cable.