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Thread: USB 3.0 speed incorrectly reported - or is it?

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just playing around new usb 3.0 flash drive , noticed odd.

take @ screenshot - speed in disk utility reported "705 mb/s". that's odd number. usb 3.0 rated 5 gb/s although of course no device going there right now.

what's more odd drive benchmarked @ exactly 705 mb/s. take @ second attachment. 705 mb/s = 88.125 mb/s...my drive eerily close.

what's going on here? did 705 mb/s come from? somehow know how fast drive be? couldn't possibly limiting speed, it? on 1 hand should report 5 gb/s , on other hand odd "705 mb/s" more realistic, yet seems number chosen @ random.
attached images attached images

just attached seagate expansion 500gb usb 3.0 drive , see same 705 mbps reported theoretical ( believe benchmark data actual). usb 2.0 devices reports 480 mbps correct theoretical. not sure whats going on, maybe motherboard on dell vostro v131.


Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [ubuntu] USB 3.0 speed incorrectly reported - or is it?


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