KA-A20S ALEXA V-mount Plate

›  Standard V-mount plate

›  For ARRI ALEXA LF/65/SXT etc

›  Output 22-33.6V with PB-H290S

›  Output original voltage with other batteries

›  Aluminum CNC unibody housing

›  High load reliable pins

›  2xD-tap, 1x LEMO, 1x USB output

›  Multiple circuit protections


ALEXA Dedicated V-mount Plate

Aluminum CNC unibody housing

The V-mount plate KA-A20S is designed for ARRI ALEXA LF, ALEXA 65, ALEXA SXT etc, with Aluminum CNC unibody housing, perfectly match with ALEXA cameras, robust and reliable.

High Voltage to ALEXA

Match with PB-H290S to output 22-33.6V

SWIT Bi-voltage battery PB-H290S can recognize the KA-A20S plate and auto switch on 22-33.6V, to power Alexa LF/65/SXT etc.
Use other batteries, the KA-A20S plate will not change voltage, and directly power the camera.

High Load Reliable Pins

Battery Contact Pins:
Unique lantern type pins, wider contact surface, support Max 16A current without overheating; Camera Contact Pins:
Copper rod direct conducting (instead of spring conducting), and the strong spring makes fully contact with camera pins, ensure 10A reliable current and prevent overheat.

Multi DC Sockets

D-tap / LEMO / USB

KA-A20S plate provides 2x D-tap, 1x 2-pin LEMO and 1x 5V/2A USB output.
Under 22-33.6V power, the D-tap and LEMO outputs constant 16V, Max 6A;
Under 11-16.8V power, the D-tap and LEMO outputs original battery power.

Compatible cameras


Compatible batteries

14.4V standard V-mount battery (SXT)

SWIT PB-H 14.4V/28.8V Bi-voltage battery (LF, 65, SXT)

DC output

D-tap x2 (Constant 16V/4A under high voltage)

2-pin LEMO x1 (Constant 16V, Max 6A under high voltage)

USB 5V/2A x1



Net weight


Basic Package







  • PB-H290S

    290Wh Intelligent Bi-voltage Battery Pack

    14.4V/28.8V auto recognition and switching, for Alexa LF and all other normal cameras and chargers, 6A fast charging, 250W high load, 1.5m drop-off proof

  • PB-H260S

    260Wh High Load Bi-voltage Battery Pack

    14.4V/28.8V auto recognition and switching, 400W high load, 6A fast charging, 1.5m drop-off proof


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