I was looking at the product picture for the module with the breakout board (2). It looks like the only available GPIO come from the 10-pin header at the top o

I was looking at the product picture for the module with the breakout board (2). It looks like the only available GPIO come from the 10-pin header at the top of the board. From what I could see it looked like there were only 6 free GPIO. Am I missing something? I did not see any datasheets or PCB layout files on their site.