Son Coax adapter with cable

SON coax junction box incl. 80cm cable with plug + coax adapter, plus extra plug (loose) and shrink tubing. When to use this. Suppose you have a bike with SON hub dynamo, the wheel has to be taken off regularly, with the plug in one move the wheel off. Do you use the dynamo as a charging device? Then you can also easily disconnect that device from the wiring via the plug. The lights that are also on your bike will then remain intact.