Which board do I have?

I'm new to Arduino and I got this board online a while ago. I can't seem to get it to work with my Mac so I'm looking for the board/chip make to see if I can track down latest drivers ?

It's a clone of the Arduino Uno which uses the same serial adapter (hence same drivers) as the official Uno (most clones use a different serial chip, require different drivers, and are less expensive).