KA-B30B B-mount to B-mount Hotswap Plate
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Key Features
Key Features
- Supports 22–33.6V B-mount battery hot-swapping
- Built-in 32Wh / 3Ah battery cells for backup power
- 200W constant high load for professional cine equipment
- Minimum 120 seconds uninterrupted runtime during battery swap
- LCD countdown display for real-time monitoring
- 2× D-tap regulated 14V outputs (70W each)
- 1× 2-pin LEMO regulated 14V output (70W)
- 1× USB-A 5V/2A power output
- 8-pin LEMO DC input for power station hot-swap
- Durable aluminum CNC unibody housing
- Multiple circuit protection system
Features & Specifications
Product Overview +
B-mount Hot-Swap Functionality
The KA-B30B is a professional B-mount hot-swap plate designed to ensure uninterrupted power during battery replacement. With integrated battery cells, it temporarily takes over power supply, eliminating the need to power down cameras or equipment during battery changes.
120 Seconds Countdown Display
Equipped with an LCD screen, the plate displays a real-time 120-second countdown when the battery is removed. This gives users sufficient time to replace the battery while maintaining continuous operation. Once a new battery is mounted, the system resets and recharges the internal cells.
High Capacity Internal Battery
The KA-B30B features a built-in 32Wh, 28V battery pack capable of sustaining up to 200W load. Even after extensive usage cycles, it guarantees reliable backup power for at least 120 seconds under full load conditions.
Stable High Load Power Output
Supporting a voltage range of 22–33.6V, the plate delivers consistent power to high-end cine cameras and accessories. When the external battery is removed, the internal cells provide a regulated 28V output to maintain device operation seamlessly.
Versatile Power Interfaces
Designed for flexibility, the KA-B30B includes multiple output options such as D-tap, LEMO, and USB-A. It also features an 8-pin LEMO DC input, allowing integration with power stations for extended hot-swap applications.
Optimized for Cinema Cameras
This hot-swap plate is perfectly suited for high-end cinema cameras like ARRI ALEXA 35/265 and Blackmagic URSA Cine, ensuring reliable and uninterrupted performance in professional production environments.
Technical Specifications +
technical specifications

