had a look at the case and it seems although its difficult to access you can still plug things into the mobo IO, so wouldnt it be easier just to get a male to female usb-c cable and have it plugged into the mobo IO?
That would work, but the case also has USB3 front ports, so will use that headerWould an adapter like this allow you to connect to the internal USB 3.0 header that is available?
http://www.akasa.com.tw/update.php?tpl=product/product.detail.tpl&no=181&type=Cables&type_sub=USB Cables&model=AK-CBUB51-BK