V-mount to B-mount Conversion

The KA-B21S conversion plate allows users to power B-mount cameras using V-mount batteries. It is designed for seamless compatibility, making it easy to integrate V-mount battery systems into professional cinema setups.

Native Voltage Output

This plate does not regulate or alter the battery voltage. Instead, it outputs the same voltage from the V-mount battery directly to the B-mount camera, ensuring efficient and consistent power delivery.

High Voltage Activation for ALEXA 35

When used with SWIT bi-voltage V-mount batteries such as the PB-H290S, the KA-B21S activates the 28.8V high-voltage mode. This enables proper powering of high-end cameras like ARRI ALEXA 35 and Blackmagic URSA Cine with a voltage range of 22–33.6V.

Broad Battery Compatibility

The KA-B21S supports not only SWIT bi-voltage batteries but also third-party 26V and 28.8V V-mount batteries. This flexibility allows users to choose from a wide range of power solutions depending on their production needs.

Reliable Build and Protection

Constructed with a robust aluminum CNC unibody housing, the KA-B21S is built for durability in demanding environments. It also includes multiple circuit protections to ensure safe and stable operation.