When using XARVIS, This part is required when using REY Storm and FLEDGE with Fan same time.
Taking power for the cooling fan from the receiver can cause a temporary voltage drop.By using this part to supply power from XARVIS to the cooling fan of REY STORM and FLEDGE, it is possible to prevent the voltage drop of the battery.
Also, the XARVIS XX has two cooling fan output ports, but the ports are oriented 90 degrees differently, so this part may be useful due to the layout of the XARVIS XX.