USB 3.0 is same speed as 2.0

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MichaelMFLC92

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Dec 25, 2012
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The USB 3.0 ports on my motherboard run the same speed as the 2.0 ports on the motherboard or on the front.

I have two hard drives, a SSD and a HDD.

Copying a movie from the HDD to the USB 3.0 memory stick is the same speed in both USB 2.0 and 3.0 ports
I thought maybe the HDD was limiting the speed so tried copying from the SSD to the memort stick. Same symptoms.

USB 3.0 has never worked properly on my PC as far as I know. Even if the drivers for the motherboard aren't up to date, this shouldn't matter as the original ones which came with the motherboard should allow it to work?
 
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LazerTechX

LazerTechX

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May 3, 2014
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USB 3 headers and USB 2 headers are not the same in size.

 
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Novuake

Novuake

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99 out of 100 flash drives have a very low write rate (less than 50Mbps, this is slower than USB2 as well), USB 3 is a lot faster than what USB flashdrives can write information.

Using an external SSD or faster HDDs (7200rpm) drives will definitely show a difference.
 
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IInuyasha74

IInuyasha74

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on the motherboard they are different, on the outside of the case they are the same size.
 
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MichaelMFLC92

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Wow, thanks for all the replies guys.

I am comparing speeds with USB 2.0 with that of USB 3.0.

I am 100% sure I've been using a USB 3.0 port as they're blue. I have two on the back of my PC attached to the motherboard.

My Memory stick is also USB 3.0. I'm not usng a lead so that doesnt come into it. Memory stick straight into PC.

The memory stick is the 64GB version of this:
DUB-A09.jpg


The speed the PC says when copying to either the USB 3.0 or USB 2.0 port is around 3MB/s - as I said, same for both types of port.

The drivers may not be up to date, but they exist because when I built the PC, I installed all drivers which were on the disc. This would surely mean that I instlled a USB 3.0 driver due to the fact that the motherboard has USB 3.0 capabilities???
 
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IInuyasha74

IInuyasha74

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Another issue it could be is the Flash NAND used in that flash drive. You can buy a lot of USB 2.0 flash drives that can't break 10MB/s despite 40MB/s being very possible, because the NAND is really cheap low quality stuff. Could be they tossed a cheap USB 3.0 controller on the flash drive but paired it with low quality NAND that can't run at those speeds. That would make easy marketing, while keeping production costs low so they could bank on those looking for a great deal on USB 3.0.
 
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MichaelMFLC92

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Dec 25, 2012
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So I tested USB 3.0 using an external hard drive which I know works faster than USB 2.0 and it's definitely faster so it works.

Only problem is that the only USB 3.0 ports are at the back of the PC and I want some on the front. I don't have a USB 3.0 header on my motherboard so I need a card. I have a PCI-E USB 3.0 card and plugged it into the motherboard with a molex thingy in it. It doesn't recognise any USB devices. I put the disc in which came with it in order to install drivers or whatever and the install wizard says that it can't find the hardware. Any ideas?
 
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