great usb hub, fits perfect and blends in with the console nicely.
there are two little nipples of plastic at each end to slot into the air vents on the console to keep it secure, the first one does not clip in place on the 40GB model as there is not a hole in the vent where this nipple goes, however the second one clips in fine.
there is no power issues at all when you have all ports in use.
there is the first usb port that says direct port, the packaging says this is used for high powered devices like portable hard drives, well there is no need for this port to be honest as my portable hard drive is powered fine by one of the other ports.
if you end up with all your ports in use but need more then this is the product for you. nice and cheap, quite strong aswel.