A ground station is composed of three parts, radio set, graphic transmission, and disply, wherein radio set has its own power supply. For graphic transmission system and display, these could only work under condition of external power supply, usually 12V voltage. The two systems come in separate part, so customers need to combine the wires by themselves. In order to offer the all-in-one device, we specially made this Y cable. A comes with two 5.5 DC connectors, which is suitable for 1.2G graphic transmission system and the input is T plug, can be directly connected with 3S lipo. And another version B comes with one 5.5 DC connector and one 3.5 connector, which is suitable for 5.8G graphic transmission system.