Garbage.
Rosewill used to sell a version of the RK9000 ("V0?") that was only MX Blue's and had a hardwired cable. No problems.
Then they started selling the "V1" with a detachable hub and that USB connector had serious problems.
Then they said "oh we improved it - here's the "V2": It still has USB connector problems.
The Rosewill RK9000 V1/V2 are the mascots of why detachable cables suck.
The USB issue with the V1 is well known, but it's a simple fix for any veterans of geekhack..
It's a costar board.. so we all know what to expect..
The v2, I don't know if it's costar, Haven't read anything.. shall see..
But looking at the review atarione is talking about, the USB port shouldn't be an issue in the v2, because it's been reinforced..
Overall, not worried about usb, as long as it's costar.. now they have the rk9100, that thing looks like one of those piece of crap monoprice boards with the shoddy soldering.. that one is also on sale with a $50 for 29.99 after rebate.. Definitely should not buy that one.