There was a problem with the flickering of RGB fans (3 pieces) when connected to the motherboard, I bought this adapter, powered 3 coolers in series to 1 connector of the adapter, the adapter to the motherboard connector, and Molex to the power supply, as a result, there was 1 free connector for connecting 1 more fan and 1 connector for connecting to the CPU FAN. All wires are tagged with what to connect to. Don't get confused.