When you get it, could you post the ma output on the powersupply?
Just curious, but I've found that many 7 port hubs come with way underpowered PS's, say, 1000 ma.
But with 7 ports each topping out at potentially 500ma, so that's theoretically 3500ma. If the ps tops out at 1000, you may see problems if you drive all the ports hard.
I've seen that first hand with a cheap USB hub I picked up.
Swapped with with a 7 port kinsington with a more powerfull ps and haven't had any problems.
if the ps is strong enough, that would be a very handy device to have around!