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USB 2.0 vs USB 3.0 flash drive recognition speed

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March 30, 2013 5:38:29 PM

This is a pretty miscellaneous and nit-picky question, but if anyone can test it out themselves and/or try offer an explanation, that would be great!

Basically I have noticed that it takes longer for windows to recognize USB 3.0 flash drives vs. USB 2.0 flash drives. For USB 2.0 flash drives, the recognition is immediate (as soon as I plug it into the port). With USB 3.0 drives, there's about a 6-second delay before the drive is recognized (explorer sound + visual).

I have tested this with four USB 2.0 drives and [unfortunately] only one USB 3.0 drive (so it COULD be just this particular USB 3.0 drive) on two separate computers, both running windows 7 SP1 with all the latest drivers and updates installed.

EDIT: oh and I forgot, hardware-wise, one the computers has only USB 2.0 ports, while the other computer has USB 3.0 ports (this is reason I tested both computers), but the above results hold true.
a b G Storage
March 30, 2013 5:43:56 PM

It's actually the opposite in my experience, takes less than 0.5 seconds to recognize my Patriot Magnum 64GB flash drive.

When I plug in my 2.0 drives, (like 12 different brands) they always take 3-8 seconds to be recognized.
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March 30, 2013 5:48:00 PM

Quite peculiar indeed! Looks like it also isn't capacity-dependent. Something else I forgot to mention in my OP was that the USB 3.0 drive was 32GB whereas the USB 2.0 drives were all 16GB, 8GB, 4GB, etc. So it would have seemed like the larger the capacity, the longer it takes to recognize the drive (which would actually make some intuitive sense). But your results completely goes against that! Hmmmm
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a b G Storage
March 30, 2013 5:54:07 PM

gleipnir said:
Quite peculiar indeed! Looks like it also isn't capacity-dependent. Something else I forgot to mention in my OP was that the USB 3.0 drive was 32GB whereas the USB 2.0 drives were all 16GB, 8GB, 4GB, etc. So it would have seemed like the larger the capacity, the longer it takes to recognize the drive (which would actually make some intuitive sense). But your results completely goes against that! Hmmmm


I think it's just entirely dependent on the internals of the flash drive.
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a b $ Windows 7
a b G Storage
March 30, 2013 8:08:37 PM

The mobo's usb controller, its drivers, usb port type and version, the flash drives drivers, size, format, any aspect that can be different will affect it.
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