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Z77 USB 3.0 problems

post #1 of 3
Thread Starter 
Ok,i have problem.I bought USB 3.0 enclosure and put Crucial m4 in it.Then connect it to Intel USB 3.0 and it gives me only 200mb/s.After thet i connect it to ASMedia USB 3.0 and same thing,only 200mb/s.I looked into enclosure and on chip writes ASMedia 1051,so it got to be USB 3.0.
Somebody have any idea.
post #2 of 3
how are you measuring speed?
post #3 of 3
Thread Starter 
SOLVED
I try Atto and as-ssd and they give me same.I forget to tell that i bought enclosure on ebay for7,5$. But if it was only USB 2.0 it would give me only 30mb/S,right?
Drive is empty.
I will make test and post.

Update:SOLVED
Sean from thessdreview says:
The throughput you're getting is definitely well beyond USB 2.0 capability.

The ASM1051 controller connects using SATA2, so what I suspect is that its SATA2 capability in your enclosure is not as effective as Intel's SATA controllers on a motherboard. For example, my motherboard's Intel SATA2 ports give ~270MBps, where as the Gigabyte ports give around ~220MB/s simialr to what you're getting.

Going by ASMedia's website, the ASM1051 comes in three versions - ASM1051 which links SATA2 to USB3, ASM1051E which links SATA3 to USB3 and ASM1051U which links adds UASP for Native Command Queuing support (for threaded transfers.)
Edited by Unit Igor - 2/21/13 at 2:06pm
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