SWIT KA-B21S | V-mount battery plate for B-mount devices/cameras, 28.8V, High Load

The SWIT KA-B21S is a V-mount to B-mount conversion plate that allows you to power B-mount cameras such as the ARRI ALEXA 35 or Blackmagic URSA CINE using standard V-mount batteries, maintaining full voltage compatibility and safe operation.

The SWIT KA-B21S V-mount Battery Plate is designed for filmmakers and cinematographers who want to use versatile V-mount batteries on cameras equipped with a B-mount power interface. This conversion plate preserves the original battery voltage, allowing seamless power delivery from SWIT Bi-voltage V-mount batteries or compatible third-party 26V/28.8V V-mount batteries.

Built with an aluminum CNC unibody housing, the KA-B21S ensures durability and reliable heat dissipation on set. Multiple circuit protections safeguard both the camera and battery against overload or short-circuits. This plate offers a practical, plug-and-play solution for modern digital cinema workflows, simplifying battery management and reducing downtime on set.

Key Features

• Allows V-mount batteries to power B-mount cameras

• Maintains V-mount battery voltage on the B-mount side

• Supports SWIT Bi-voltage V-mount and 3rd party 26V/28.8V batteries

• Durable aluminum CNC unibody housing

• Multiple circuit protections for safe operation

• Ideal for ARRI ALEXA 35, Blackmagic URSA CINE, and other B-mount cameras