Go pro does not sell this fcs plug mount separately, which we found very annoying. We finally found a source and now offer it as an accessory. All Blue Planet SUP and surfboards (2013 models or later) come standard with an fcs plug installed on the nose. Mount this attachment to the plug and you are ready to shoot video with your gopro camera (compatible with all generations of gopro cameras).
Can also be used as a safety tow strap attachment (see photo).
First class shipping available in US for $2.