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Re: USB 3.0 for a 2.5" drive?

From Richard Kettlewell <rjk@greenend.org.uk>
Newsgroups comp.arch.storage
Subject Re: USB 3.0 for a 2.5" drive?
Date 2015-08-08 10:41 +0100
Organization Anjou
Message-ID <wwvzj22qfrl.fsf@l1AntVDjLrnP7Td3DQJ8ynzIq3lJMueXf87AxnpFoA.invalid> (permalink)
References <mq49p3$n3k$1@dont-email.me>

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"Charles T. Smith" <cts.private.yahoo@gmail.com> writes:
> Hi, a quick question for the experts.
>
> I've gathered the impression that the interface technology (usb, sata, 
> pata) for disk drives is really irrelevant - for a single drive - because 
> disks can't deliver data fast enough to run into an interface bottleneck.

USB2 is slow enough that it’s a serious bottleneck.

> Maybe that assumption's not correct... anyway, I see an ad for a Seagate 
> external 2.5" drive which uses "USB 3.0 Super-speed, up to 10x faster 
> than USB 2.0".  While that's likely true about USB 3.0, isn't it 
> cynically, unethically misleading about the effect on the drive's 
> performance?  Or, why would Seagate supply drives with USB 3.0 technology?

USB3-connected drives are *much* faster than USB2, based on the drives I
have.

-- 
http://www.greenend.org.uk/rjk/

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Thread

USB 3.0 for a 2.5" drive? "Charles T. Smith" <cts.private.yahoo@gmail.com> - 2015-08-08 07:06 +0000
  Re: USB 3.0 for a 2.5" drive? Robert Wessel <robertwessel2@yahoo.com> - 2015-08-08 03:01 -0500
    Re: USB 3.0 for a 2.5" drive? Robert Wessel <robertwessel2@yahoo.com> - 2015-08-08 03:05 -0500
  Re: USB 3.0 for a 2.5" drive? Richard Kettlewell <rjk@greenend.org.uk> - 2015-08-08 10:41 +0100
    Re: USB 3.0 for a 2.5" drive? "Charles T. Smith" <cts.private.yahoo@gmail.com> - 2015-08-09 20:19 +0000

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