KA-M20S
Dual Pocket V-mount Batteries Hot Swap Plate
◆ Fit 2x PB-M Pocket V-mount Batteries
◆ Low power device: Hot swap mode
◆ High power device: High load mode
◆ Power indictors and hot swap indicators
◆ SONY&RED power info display
◆ Provide 2x D-tap sockets
◆ Slim and light weight, balanced install
◆ Multiple protection circuit
For more information see this link