Windows 7 - What differences between USB3 and USB2?

Asked By potur on 14-Dec-10 05:44 AM
Hi, I know some motherboards support USB3. Is it very useful that
connection?
Thanks




JohnA replied to potur on 14-Dec-10 11:02 AM
It is useful if USB2 is not fast enough for you - about 10 times faster.
Mind you, the thing at the other end of the cable (and it is a different
cable) has to be faster, too, if you are to benefit  ;-}
Jeff Strickland replied to potur on 14-Dec-10 11:54 AM
it is faster. There is no such thing as too much speed.
Kele replied to potur on 14-Dec-10 01:58 PM
USB2 vs USB3 (google that)

USB3 is currently three (some say four) times faster than USB2 and should
improve as technology matures - they say.  For now eSATA is slightly faster
and FireWire 800 is slightly slower than USB3.  I spoke with a computer shop
recently about building an external drive w/case and HD.  They confirmed
that USB3 is backward compatible with USB2 devices, the ports are the same
size, and something I did not know was that the standard is/will be USB3
ports are colored blue (the plastic parts).  Eventually USB3 will be the
norm as USB2 is now I presume.

Like others have mentioned - read/write (transfer) speeds are as fast as the
weakest link: USB2 (device) mated to USB3 (port) = USB2 speed
And I just thought of something... the cables.  Like when we advanced from
USB1.1 to USB2, that includes updating the cables so make sure cables are not
the weakest link.

If I were shopping today, I'd get as much USB3 as possible.

http://www.sevenforums.com/attachments/hardware-devices/64886d1270328659-usb-3-0-vs-2-0-seagate-3.0.png



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Hi, I know some motherboards support USB3. Is it very useful that
connection?
Thanks
VanguardLH replied to potur on 19-Dec-10 09:22 AM
Not if you do not have any USB3 devices.
ChrisCoaster replied to Jeff Strickland on 02-Jan-11 10:57 PM
___________________
I guess the original USB (USB1 for lack of better name?) is dust by
now.  I had a 2000 Gateway at one time with USB1 and it recognized a
thumbdrive once - and NEVER again.

-CC
Jeff Strickland replied to ChrisCoaster on 02-Jan-11 11:10 PM
___________________
I guess the original USB (USB1 for lack of better name?) is dust by
now.  I had a 2000 Gateway at one time with USB1 and it recognized a
thumbdrive once - and NEVER again.

-CC

I believe the first USB to make mass production was USB 1.1. You could buy a
High Speed USB 2.0 PCI card and drivers (from Belkin, among others) to get
USB functionality. Early USB devices would report, "I am USB 2.0. You can
use me here, but I will not work as fast as I could if you had better USB
support."