After initial difficulties TOP!

Well, after I read all the excellent reviews here, and it's not there so many 7 Series hubs with USB 3.0, I have sometimes added to it and I ordered this HUB. After I got the stroke, I have this course directly connected and fed with 5 external HDDs - 1x USB 2.0 and 4x USB 3.0 - all with external power supply.
Hub has been recognized directly in Windows 7 (64bit) and the HDDs were displayed. In my new 3TB USB 3.0 HDD plug went pretty hard in the HUB, but it worked ... First !!! after about 3-4 hours to my PC with "Disconnecting Device" reported ... and the 5x! because suddenly all the HDDs have been connected to the HUB logged!
HMMM ... what now checked device manager and there was not a meaningful error message (yellow exclamation mark).
Restart computer and hey presto they were back ... for about 10 minutes - then suddenly all USB 3.0 HDDs were away - which was a USB 2.0 still displayed - The lights on the USB Hub were at all, except for the 3TB HDD.
Then I have time (late right) and get the Supoort of USPEED emailed directly the next morning a reply!
It could possibly be due to my USB 3.0 controller in the PC ... Unfortunately I could at no internal USB 3.0 testing, because I still do not have there;) ... but since was still something with the 3TB HDD ... the plug was indeed very difficult to clean and the 2nd error the lamp shone not ... so I once again connect this HDD directly on the PC, and the remaining 4 left in HUB ... and lo and behold - until today (3 days later approx) no more problems! then I've also replaced the cable of 3TB HDD and then reconnected to the hub - and since these goes on HUB without any problems !!! (even though the HDD with the "defective" cable worked directly on the PC.)

CONCLUSION:
the HUB is absolutely fine !!! is not very warm and does what he should.
I think the USB 3.0 format itself is still relatively fragile and was probably due to the "comic" cable somehow vulnerable - the 3A should be sufficient in itself for normal things!
Positive I found the manufacturer's support - responded directly and as you can see the product, they are also trying to improve their product ever - really great !!!
when it should again open up a problem, I'll post here again.