Problems With USB 3.0 On mac?

I have the new Macbook Pro with Retina Display and today i decided to buy a USB 3.0 memory stick. odd enough the read and write speeds are WAY off.Anyone else having this problem? Thanks

Yeah I have tested it with spinning media and it was 30-50% slower than the belkin via thunderbolt.
I am not game enough to try SSD.
And the reliability issues are driving mew crazy, I ordered anotehr belkin thunderbolt hub, and I am now just leaving it to very poor USB chips.
According to this article the design is very poor,
http://www.anandtech.com/show/7603/mac-pro-review-late-2013/8
"Here we really get to see how much of a mess Intel’s workstation chipset lineup is: the C600/X79 PCH doesn’t natively support USB 3.0. That’s right, it’s nearly 2014 and Intel is shipping a flagship platform without USB 3.0 support. The 8th PCIe lane off of the PCH is used by a Fresco Logic USB 3.0 controller. I believe it’s the FL1100, which is a PCIe 2.0 to 4-port USB 3.0 controller. A single PCIe 2.0 lane offers a maximum of 500MB/s of bandwidth in either direction (1GB/s aggregate), which is enough for the real world max transfer rates over USB 3.0. Do keep this limitation in mind if you’re thinking about populating all four USB 3.0 ports with high-speed storage with the intent of building a low-cost Thunderbolt alternative. You’ll be bound by the performance of a single PCIe 2.0 lane."

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