Have a closer look at the photo. There's rows of holes for connectors along the top and bottom of the board. I see one set is labelled JTAG. It looks like th

Have a closer look at the photo. There's rows of holes for connectors along the top and bottom of the board. I see one set is labelled JTAG. It looks like the tracks and holes are there for soldering on other I/O connectors if you wish. Oh, and there's a LED in each of the bottom corners. ;-)