OCIA.net takes a look at the Ultra X-Pro & X-Finity Power Supplies in their latest review

The X-Finity has the same number of connections so I won't go over that again. But, the cool thing with these cables is that they aren't rounded and sleeved like most you are used to. These cables are designed to lay flat, which means you can easily route them in your case. Even the main ATX cable is thin enough to be tucked under a motherboard. Some people may not like the color of the cables, but if they are tucked away... out of sight, out of mind!

Ultra X-Pro & X-Finity Power Supplies Review