Any multibay/dock with one dedicated USB 3.0 port per drive?

[SOSdonnees]

Hi,

I'm looking for a multi-bay for 3.5'' (and possibly 2.5'' drives), with one USB 3.0 port per drive.
Exactly like a stack of independant enclosures.
A dock could also suit my needs if the drives can be removed independantly, although a bay is "prettier" than a dock and sometimes have a lock system. A bay for up to 4 drives would be perfect.

Until know, I could only find bays where all drives share the same USB port, and this does not let benefit from higher speed.
For instance: http://www.raidsonic.de/products/external_cases/external_cases_35/index_en.php?we_objectID=2317

There are also backplanes like these ones. But the ports are SATA / SAS, not USB.
http://www.raidsonic.de/products/internal_cases/backplanes/index_en.php

The closest product that I could find from what I need is the RocketStor 5422A :
http://www.hptmac.com/series_RS5422A-Specifications.php
Unless the white color (I would prefer black), it seems nice.

I could not find any anything with more than two USB 3.0 ports, nor any competitor of the RocketStor product.
Is there any ?

[falther]

For how many 3,5" hdd do you need the multi bay system ?

I might know a solution

regards

+++

[falther]

Just saw its for 4 drives - will send a pm