The D-Tap to 2-Pin Power Cable (LEMO OB-type male) is a durable blue cable for seamless connectivity between professional V-mount or Gold-mount batteries and equipment like cameras. wireless devices. or lights. Featuring a D-Tap connector on one end and a 2-pin LEMO 0B-type connector on the other. this versatile power cable ensures reliable power delivery for any gear compatible with 2-pin LEMO connections.Pin-1 GND - This means that the pin next to the red dot is the ground.