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How to determine Version of USB?

Posted on 2004-10-08
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Last Modified: 2010-04-26
Perhaps it's a silly question, but how does one determine the version of USB implemented on a computer?  I'm pretty certain that I don't have 2.0, but want to make certain that I have at least 1.1 implemented in order to be able to connect an external harddrive (I know, I know, get firewire, right?<G>  I already have two internal drives, a cd/rom r/w and a DVD drive - I think this computer is about maxed out)?

I'm running Windows 2000 professional, if that makes a difference.
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Question by:periwinkle
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sunray_2003 earned 500 total points
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One of the methods

start --> run --> cmd. At the cmd prompt type "Devmgmt.msc set DEVMGR_SHOW_NONPRESENT_DEVICES=1" and press Enter .. this shud open device manager. now go to view ---> show hidden devices .. now scroll down and click on + of USB controller. If u see the word "enhanced usb controller " then u have 2.0 orelse you donot have 2.0 .. Also you can right-click on any of the sub categories , go to properties. then go to drivers tab. then click on "driver details". if you have USB 2.0then  you will see the file name "USBEHCI.SYS " or if you have USB 1.0 or 1.1 you should see "USBUHCI.sys"
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by:periwinkle
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Thanks - I had gotten that far, and this confirms that I'm on either 1.0 or 1.1, as I don't have an enhanced USB Controller.  I do need to understand whether it is 1.0 or 1.1., though...

Here's what I have listed under the controller (there's another hub as well as some devices, but I'll skip those):

VIA USB Universal Controller
Driver date: 6/19/2003 (Microsoft)
Driver version: 5.0.2183.1
Driver Files:
uhcd.sys
usbd.sys
usbhub.sys
usbui.dll
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by:sunray_2003
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It is not really necessary to know whether you have USB 1.0 or 1.1 to check if your external USB device that you are going to connect will work or not. they are all backward compatible
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by:periwinkle
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Oh!  I thought perhaps since it said USB 1.1 or 2.0, that you needed at least 1.1... good to know!

I probably should look into upgrading the card, right?
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by:sunray_2003
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even if you have a high speed device (usb 2.0) , technically it should work even if you have USB 1.1

if donot have any problems upgrading the card , upgrade it . USB 2.0 is superfast compared to 1.0 or 1.1
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by:periwinkle
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Many thanks Sunray - I appreciate the super-speedy and helpful comments!
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by:sunray_2003
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periwinkle,

You are welcome
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