FYI, I got 5 of the SiPolar-esques in recently. I still have to try it, but all 20 ports at least boot up fine on my model (haven't plugged it into a PC quite yet).
Proof:
http://i.imgur.com/O8hLjjj.jpg
Proof:
http://i.imgur.com/O8hLjjj.jpg
Mine got that far too, now try some mining, and watch the fun
For me it was neither Bitminter, nor CGMiner that could make this work. (I hadn't switched over to BFGMiner yet) On one hand, I wish I got a bad one, because the spacing on this is perfect for the usb sticks, I would gladly get another 1 or two, but as of now, having been burned, I don;t see myself risking another $100 on it. That reminds me, I should try it with bfgminer as well tonight when I get home.