USB 3.0 transfer rate = 15-20 MB/s ….. ?? Solved

Question

Hello,

When transferring with my external 3.0 hard drive, I reach a maximum speed of 15-20 MB/s... 
So transferring 70 GB takes about 1h20... 
Why is that happening?

Note that my HDD is indeed USB 3.0, and I plug it into a USB 3 port (blue). It's a WD Elements 1To.
Note also that my PC is brand new, only a week old!
I am using Windows 8.1.

Finally, in Device Manager, there are no warning points... The drivers seem up to date!

Thanks for your help.

dg_belmontet · Accepted Answer

Good evening,

I don’t have a solution to offer you at the moment, but here is some information that may guide you:

- I ran tests on a WD My Passport external 1 TB disk (USB 3.0) for a 1.5 GB HD movie located on my computer’s hard drive. The copy to the WD USB finishes in exactly 30 seconds (with antivirus). That’s about 3 GB per minute. These results are significantly higher than yours...

- Your problem isn’t easy to identify because it can stem from your USB drive (and the USB 3.0 port) but also from access to your local hard drive. To try to identify the issue, download the USBDeview tool at the following link:
http://www.nirsoft.net/utils/usb_devices_view.html
Be sure to choose the 32-bit or 64-bit version according to your computer’s architecture. This tool lets you identify all connected USB ports and drives and also run read/write tests on an external USB drive or key.

From my side, the results for this WD My Passport external drive are: 52 MB/s write and 72 MB/s read. You’ll see that the 52 MB/s write result corresponds to a 3 GB per minute transfer (thus very consistent with the file copy test I performed).

If your results are around these two values (approximately...), the problem would come from reading your local hard drive and the transfer process to the USB 3 port. If the results are well below these values, the issues could be with the USB 3 port or your WD external drive. With this tool, you can bypass the local hard drive.

Difficult to say more at the moment.

Best regards.

Flogger · Answer

Hello  Depending on the file type, if the antivirus is enabled, that’s not surprising.

bennnnn59 · Answer

I don’t have antivirus, I had removed it. So that’s not the cause..  And regarding the files, they’re just HD movies. Is it normal to have such a low transfer rate?

bennnnn59 · Answer

I don’t see why my computer would necessarily get infected with a virus... And that it would slow down the transfer speed.......... My computer is new! anyway..  Otherwise, the maximum throughput on the HDD isn’t marked! I don’t understand why it’s so slow..

flo88 · Answer

Hello

I’m sorry, but I share quite what Flogger said. Both about transfer speeds and the security of a PC (the best USB 3.0 drives flirt with 90 MB/s, 30 MB/s is average and for small files it’s 10 MB/s at best, see the numerous tests on the net e.g.: https://www.lesnumeriques.com/disque-dur-externe/comparatif-disques-durs-externes-lequel-choisir-a435.html)

We can doubt these statements; in certain situations, that may be the case.

However, regarding the presence or absence of antivirus, you should know that the “lifetime” of a computer connected to the Internet without protection is less than a minute... This is understood without a firewall. Without antivirus, with a firewall, but having a “risky” browsing behavior, it’s a few minutes. The figures I’m stating are easily verifiable: https://www.lemonde.fr/blog/bugbrother/2009/02/20/la-duree-de-vie-dun-ordinateur-non-protege-est-de-4-minutes/ 4 minutes in 2009 without a firewall.......Go ahead and try it. Then post in the security section of the forum ;-)

Hello to you.

Bennnnn59 · Answer

Yes, except that I don’t have 30 MB/s throughput! But more like 15 MB... Anyway, apparently this is "solved," so thanks for this nice totally off-topic discussion (apart from one response, thanks to him)

waree · Answer

It's crazy to focus on the absence of an antivirus when the user themselves doesn't care at all; you can't protect people against their own actions. Very revealing of the era. That said, it shouldn't be advised that no one use an AV, but still, everyone is free. If he ever comes back crying because he's severely infected, then you can give him a lesson. For now, that's not the case;

Bennnnn59 · Answer

To answer one last time :) : It’s been nearly 10 years since I haven’t used any antivirus on the 2 PCs I own during this period, and I NEVER had any problems :)... You just have to be careful where you browse and what you download! So yes, everyone is free :)  Have a good evening!

flo88 · Answer

I take advantage of revisiting the topic to close it, I refer all the protagonists to the tests conducted (numerous) by various specialized sites as well as magazines like Hardware Magazine. I think the graphics speak for themselves. http://static.commentcamarche.net/www.commentcamarche.net/pictures/GlIAr6lHRkLTpPtCvsKLkrnMOVa1yGp4NOo8VsSQgGZKOUtbudXdTDL2kx8KBeNV-dd.png  -- Hello to you

USB 3.0 transfer rate = 15-20 MB/s ….. ??

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