The back of the A9 looks like the back of the Simtec's ARM9 dev board, but is not the same.
What do you need on the board: VGA connector, parallel/serial, USB and Ethernet:
If you put the big connector in the middle, you can put the USB to the left or you can put the USB to the right, so that's 50% change.
Plus, the A9 has an other connector (keyboard?) so they look the same, but they are not.
If you look at [link] you see a connector on the same place, but other stuff not. Similar design, but not the same.