How can I tell if I have USB 2.0?

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No.

Leo

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Regarding the previous message, does the word "Enhanced" mean all the computer's USB ports are 2.0? If not, how do you identify which port on the PC is 2.0 and which is 1.1?

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I just updated the article to try and make this even
clearer: If "Enhanced" appears even once, then on 99% of
machines that means that ALL USB ports are 2.0 ports.

Leo

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You can check to see if your USB device is plugged into a usb1.1 or usb2.0 port in the following way:

In Device Manager, click View/Devices By Connection. Expand 'PCI Bus' - you should see your USB controllers listed. Locate your plugged-in one of the subfolders of the controller. If its parent is an "Enhanced" controller, it's operating at USB2.0 - otherwise 1.1

Locate your device in the tree, paying attention as to whether it's under an "Enhanced" controller or Standard.

I believe there are instances in which new computers have both; the 2.0 are on the main part of the PC, but the additional ones -- on keyboards, monitors -- are 1.1. I think this is true of Apples, too; the back of the monitor is fine but anything on the front (ie, keyboard) is not.

Thank you Leo for the info. I have a machine my buddy built for me and I see in the Device Manager that there are no ports that say "Enhanced PCI to USB Controller" but I do have an additional Serial Bus Controller that says "USB 2.0 Root Hub Device" but I cannot locate the actual physical port. Is there any way to find out without doing the plug and pray method?

Thanks,
CJ

I have a computer with 8 physical USB ports.
In the device manager I can see 4 standard host controllers and 2 enhanced host controllers, but neither of the two enhanced ones are connected to one of the 8 physical USB ports. They are all internal.
So, even if you have an enhanced host controller, it does not mean you have a USB 2.0 port on your computer. It just means your computer is capable of having a USB 2.0 port, unfortunately.
And regarding the driver, it has to be 5.1.2600 or later.

Hi Leo

Everytime I insert a USB device it tell me "this device can perform faster" I checked to see if I am USB 2.0 enabled. The thing is that I appear to have two USB contollers when I checked the Device Manager. Shouldn't I only have one. I have 3 usb ports on my laptop.

It looks like this:

-Universal Serial Bus controllers
--Intel(R)82801FB/FBM USB Uni.Host Controller-2658
--Intel(R)82801FB/FBM USB Uni.Host Controller-2659
--Intel(R)82801FB/FBM USB Uni.Host Controller-265A
--Intel(R)82801FB/FBM USB Uni.Host Controller-265b
--USB Root Hub
--USB Root Hub
--USB Root Hub
--USB Root Hub

-Universal Serial Bus controllers
--PCI Class USB 2.0 Enhanced Host Contoller
--USB 2.0 Root Hub Device

Thanks for your help

Came across your site when trying to solve a usb problem with an old server. If it is of intrest, it does indeed have two different speeds, 1.0 at the front and 2.0 at the back. Not common though!
NEC Express5800/140Re-4
http://www.nec.co.jp/express/press/pr060807.html

Hi all. I do not believe the introductory information from the site host, Leo Notenboom, in his introduction is correct: "... on most machines the presence of 'Enhanced', even only once, means that all USB ports are USB 2.0 ports ..."

I just bought a new Dell workstation a month ago and there are eight USB ports and it seems the two in front and two of the six in back of the box are USB 2.0 while the remainder are 1.1. (I see the "this device can perform faster.." message when plugging into the slower ports in the rear with commensurately slower speeds and the absence of the message with commensurately faster speeds when plugging into the two faster ports in the rear or the two in the front.)

I made no special requests to Dell regarding the configuration of the workstation and in fact there was no discussion of the USB ports at all, it's just a standard workstation--though I did order extra RAM and HDD space and a faster CPU.

So I believe even considering the qualifier, "... on most machines...", it is still incorrect. Note also another poster's observation (Adrian at August 27, 2008 8:18 AM) which seems to mirror mine.

Or, was I shortchanged? Or am I doing something else incorrectly? (I wish all eight were indeed 2.0.)

I would like to hear from the site host Leo here by way of a post if he thinks this is the case, but it seems he does not follow up.

Finally, Leo's information seems incomplete: "In this case [in which there are both 2.0 and 1.1 ports] I know of no way to tell which is which..."

Poster Jim (Jim at July 26, 2008 12:50 PM), above, has given one solution: "You can check to see if your USB device is plugged into a usb1.1 or usb2.0 port in the following way:..."

In sum, the information from Leo Notenboom regarding discrimination between USB 2.0 and 1.1 seems not particularly well-researched or thought out.

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