As you can see, the new streamlined case appears, at least externally, to be a significant shift in style from Shuttle’s earlier XPC case designs. What you’ll find on the inside of the SB75S however is very similar to the popular Shuttle SB75G2 XPC, powered by the top-of-the-line Intel i875P motherboard chipset. Except for a few minor changes which we’ll touch on later, the SB75G2 and SB75S are essentially identical on the inside, but certainly look, and sound, quite a bit different.