I recently purchased a Beelink I68 8 core media box to run Kodi on but couldn't resist the urge to pry it apart and look inside after noticing in the system settings a dead link for SATA setting, it got me thinking there must be some way to add a SATA drive if I could only identify the connector pins on the board. I never expected to see the sata port but knew that there are usually other routes to achieve this result so looked for the pinouts.
Upon opening the unit, I saw there were several holes labelled but with no pins attached, I have pics showing the whole board and close-ups of the empty pin holes. I would be grateful for advice on how I should proceed and any limitations which may make this procedure a fools errand.

