Comments for How can I tell if I have USB 2.0?

Comment from xanadu on 2009-11-18

2009-11-19T01:02:34Z

I wish people wouldn't write articles when they are clueless. I have a machine that DOES NOT have an add-in card and yet has USB 1.1 and USB 2 ports and yes it does state enhanced. So you are wrong and it really annoys me when people make assumptions without checking their facts and then pass on inaccurate information to someone else who relies upon it as being correct.

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Comment from jun on 2009-06-29

2009-06-30T05:19:03Z

when i plug usb device into my pc always appear update driver wizard why?
thanks............

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Comment from ccbehrens on 2009-05-28

2009-05-29T03:17:23Z

i do not have usb 2.0 can i update it with software and thats it

No - USB 2.0 is different hardware. You could purchase an expansion card that has USB connectors; that's what I did on one of my older machines.

- Leo
29-May-2009

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Comment from ordinary on 2008-12-12

2008-12-13T06:07:04Z

This is just an added information regarding the said issue. I have a 2 usb flash memory when I will insert the flash memory it will prompt me "this device can perform faster" but when I connect also the other (flash memory) on the same port it will not prompt "this device can perform faster" Maybe one of the cause of this issue is the usb flash memory that you are inserting.

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Comment from Felicity J. on 2008-10-08

2008-10-09T06:20:30Z

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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Comment from rscc on 2008-09-15

2008-09-15T17:22:45Z

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

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Comment from Gysie Verwey on 2008-09-05

2008-09-05T14:42:36Z

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

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Comment from Adrian on 2008-08-27

2008-08-27T15:18:37Z

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.

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Comment from CJ on 2008-08-21

2008-08-21T23:29:26Z

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

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Comment from a m andrews on 2008-07-28

2008-07-28T18:45:38Z

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.

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Comment from Jim on 2008-07-26

2008-07-26T19:50:31Z

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.

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Comment from Leo on 2008-07-08

2008-07-08T18:54:39Z

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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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Comment from Rich on 2008-07-07

2008-07-08T06:04:07Z

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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Comment from Leo on 2008-07-02

2008-07-02T22:43:54Z

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No.

Leo

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Comment from Dennis Ragan on 2008-07-01

2008-07-02T02:56:07Z

In the example regarding identifying whether or not one has USB 2.0, the picture also shows four listings for universal host controllers. Does this mean that some (four) of the USB ports are 1.1 and one is 2.0?

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Comment from Kendrick on 2008-04-07

2008-04-08T02:38:49Z

Possible solution to get rid of message... Click on properties of the "enhanced" USB in device manager. Then click on "Advanced" tab... at the bottom will be an option to ignore usb errors... choose that and hit ok. That should get rid of the message. Hope that helps.

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Comment from Leo A. Notenboom on 2008-02-18

2008-02-18T17:48:35Z

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Yes, I've said it repeatedly: on *most* computers (like 99%)
even if "enhanced" shows up only once, then ALL USB ports
are 2.0.

For that other 1% I don't know of a way, offhand, to tell
the difference, other than simply trying your device in all
the ports - or checking your computer's documentation. The
only time I've ever seen this is if the computer itself only
supports 1.1, and you add a USB 2.0 expansion card ... then
it's fairly obvious that the ports on the card are 2.0 and
the others are not.

More likely is that there's something else - like perhaps
you're connecting through a USB hub that doesn't support
2.0.

Leo

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Comment from Lauren on 2008-02-14

2008-02-14T14:57:20Z

Leo,
If all the USB ports are 2.0, according to your comment above,if just one of them says "enhanced" then why do I keep getting the message that my device could work faster on a hi-speed port? Are you saying that all 6 usb ports on my computer are hi-speed even though only one says enhanced? If you are not saying this, how can I tell which one is the hi-speed one?
Thanks!

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Comment from Snapper on 2008-02-12

2008-02-12T19:43:24Z

Computer has one USB 2.0 controller and three (or five, if you enable all the ports) USB companion controllers that report themselves as USB 1.1 devices. If you plug a USB 2.0 device into any port, the device functions at USB 2.0 speeds; the controller handles the logic internally. USB controllers from different vendors might not report ports in the same way and might not indicate that all the ports are USB 2.0 capable, but each should have the same functionality.

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Comment from Leo A. Notenboom on 2007-12-14

2007-12-14T20:08:24Z

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Yes, there are expansion cards that will add USB 2.0 ports to an older system.
In fact I've done exactly that on one of my older systems.

Leo

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Comment from So0o0Confused on 2007-12-13

2007-12-13T17:11:04Z

I am running Win 98SE on a PC thats approx 4-5 yrs old. I have 4 built in USB ports, 2 in front 2 in back.

I want to get an external HD but they all say 2.0 USB, i do NOT see 'enhanced' on my device manager. can i purchace a USB port and insatall it on this machine for the external HD??

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Comment from Leo A. Notenboom on 2007-11-24

2007-11-24T16:53:11Z

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99.999% of the time if it says USB 2.0 for any one of them, ALL OF THEM ARE
2.0.

Thanks,

Leo

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Comment from doc on 2007-11-22

2007-11-23T01:45:56Z

I have 8 usb hubs on my compa and one of them is 2.0, how do i figure out which one it is?

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Comment from Leo A. Notenboom on 2007-10-22

2007-10-22T21:39:17Z

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If "enhanced" is present, then on 99% of the computers out there this means
that ALL the ports are USB 2.0.

Leo

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Comment from Chris on 2007-10-22

2007-10-22T17:00:24Z

I have 6 USB ports on my computer. 2 in front and 4 in the back. I went to the Universal Serial Bus controllers and see that I do have an Enhanced USB controller. How can I tell which one is the enhanced port? I am running windows vista ultimate 32 bit.

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Comment from Leo A. Notenboom on 2007-09-04

2007-09-04T23:30:17Z

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Yep. Enhanced means enhanced and that means 2.0.

Leo

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Comment from Charlotte Grubb on 2007-09-04

2007-09-04T20:14:04Z

My computer reads
NEC PCI to USB enhanced host controller (B1)
If it said enhanced do I have the 2.0. I'm confused since behind it has a B1
Thank you

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Comment from Leo A. Notenboom on 2007-03-20

2007-03-20T19:54:08Z

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I would check your flash drive's READ speed. Flash memory is significantly
slower to write than it is to read. If your read speed is the same, then I'd be
tempted to say you're operating at USB 1.1 speeds. If your read speed is
significantly faster, then you're probably running USB 2.0 jsut fine, but the
flash memory write speed is the bottleneck.

Good luck!

Leo
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Comment from Bob Hendrickson on 2007-03-19

2007-03-20T04:39:25Z

Thanks. I just bought two 1G flash drives and discovered it takes 15 minutes to write 962 MB into them (467 jpg pictures). I got the same results on two new computers. I doubted I had USB 2.0 so I verified I have USB 2.0 per your article. Is this normal speed for a new "fast" 1 G flash drive ? Not what I expected.

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Comment from Leo Notenboom on 2007-02-22

2007-02-22T18:58:13Z

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On *most* machines, it's all one or the other. All are USB2, or all are
USB1.

If cards have been added, or somehow the machine has mixed USB 1 and 2,
I'm currently not aware of a way to tell by looking at the config which
is which. I'd plug in a USB2 device and see if the OS complains about
"your device could perform better if plugged into a USB 2 adapter" -
which would indicate it's plugged into a USB 1 port.

Leo
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Comment from Same Old Question... on 2007-02-20

2007-02-20T18:54:58Z

Ive been trying to find an answer to this very simple question:

My PC has a label on the front USB ports saying USB2. How can I tell if the 4 ports at the back are ALSO USB2 or just plain old simple USB1? The "ehanced" thing is there, but does that cover ALL ports or just certain ones?

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Comment from Leo A. Notenboom on 2006-09-06

2006-09-06T15:29:25Z

Sounds like the docking station has additional USB ports on it which are 2.0 compatible.

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Comment from texas on 2006-09-05

2006-09-06T06:44:49Z

Hi I have a slightly different issue - my laptop has only usb1.1, however when i plug into my docking station it says that i have the usb enhanced controller. is it correct then that when i am docked i am usb 2 capable, or will my laptop not handle it
cheers

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Comment from Thirdstring on 2006-07-29

2006-07-30T03:25:22Z

Ahgo, the typical troubleshooting is to delete in the device manager whatever is having trouble. That is, if it has a red x or a yellow !. Then the next time you restart, it will detect it and take you through reinstalling it. And this time around you can focus on that one driver.
A second option is to right click & choose properties on the ! or x, then choose update driver.
Your ASUS disc is correct, XP has standard drivers for USB.

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Comment from Ahgo on 2006-07-25

2006-07-25T15:53:04Z

Help - Just built computer with ASUS 939 MB, running XP with SP2 and updates. Installed MB disc from ASUS with drivers, but have no USB. Device Manager shows "standard enhanced PCI to USB host controller" as not installed. ASUS disc says that drivers not needed for USB 2.0, as they are in XP. I'm frustrated trying to find out what the problem really is.

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Comment from Leo on 2006-06-29

2006-06-30T05:30:41Z

Very unlikely.

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Comment from Anand Bery on 2006-06-29

2006-06-30T02:56:02Z

I have 2 USB ports on the front of my computer and 4 on the back. My device manager states that the host controller is USB 2.0...but is it possible that the front 2 are USB 1.1, but the back 4 are 2.0?

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Comment from Leo A. Notenboom on 2006-06-19

2006-06-19T16:34:08Z

"Enhanced" is typically a system-wide attribute. If these are the ports your PC came with, it should apply to all the ports in your PC.

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Comment from matt on 2006-06-19

2006-06-19T15:53:52Z

This is helpful but how can I tell which of my physical connections this applies to? There are a lot (8) USB connections on the PC but only one of them is listed as ENHANCED in my dev. mngr. How can I locate it on the PC?

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Comment from Leo on 2006-04-26

2006-04-26T17:09:14Z

a) Maybe/probably (it depends on the USB 2.0 device). It'll be slower, though.

b) Yes. 1.1 devices should work in 2.0 ports.

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Comment from phil on 2006-04-26

2006-04-26T16:56:20Z

Will a USB 2.0 Thumb drive work in a USB 1.1 socket? Will a USB 1.1 Thumb Drive work in a USB 2.0 socket?

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Comment from chris on 2006-02-27

2006-02-27T12:02:04Z

Plus I think that I've noticed that a lot of the older 1.1 usbs are white on the inside and the 2.0's are black and I've used lots of devices in the black ones that the Device Manager said was "universal" so that might be how you can tell

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Comment from chris on 2006-02-27

2006-02-27T11:57:46Z

Try going to Services and stopping and restarting the Plug and Play service. If you don't have Services or a older laptop then sorry your SOL

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Comment from Leo on 2006-01-18

2006-01-19T06:06:37Z

No, you're limited by the interface on your laptop.

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Comment from cliff2noronha@gmaiL.com on 2006-01-18

2006-01-19T04:20:10Z

Wednesday, January 18, 2006 11:18 PM

Assuming that I have an old USB 1.1 port on my Dell Latitude C600, can I multiply it by buying a USB 2.0 4-port hub made by Belkin, Dynex, etc. ?? I know combinations of 2.0 and 1.1 always downgrade to 1.1. Does the 2.0 have to be upstream of the 1.1? My 1.1 would be upstream of the 2.0.

-- cliff2noronha [at] gmaiL.com

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Comment from Leo on 2005-12-22

2005-12-23T04:28:30Z

It doesnt say "enhanced" so, I'd say you don't have 2.0.

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Comment from Kyle on 2005-12-22

2005-12-23T04:25:34Z

In my system menu I don't have anything USB like what you have in your screencap. I have the following:

Intelr(numbers)usb universal host controller 2442
Intelr(numbers)usb universal host controller 2444
USB root hub
USB root hub

Just wondering If I have USB 2.0 as I need it for a capture card I will be purchasing (Dazzle 150)

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Comment from Leo on 2005-12-15

2005-12-16T06:09:30Z

Firewire is different and won't help (unless the drive you're talking about also has a firewire connection). In either case I would simply get a USB 2.0 adapter to add to your machine. Since you have a laptop, you should be able to find a PCMCIA adapter that supports USB 2.0.

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Comment from Govindaraj Venkataraman on 2005-12-15

2005-12-15T10:34:56Z

I recently bought an used lap top computer from a person known to me. its NEC - Versa - Aptitude - PIII. since it has only 30 GB HDD, i bought a 60 GB 2.5external HDD with USB casing. but when i connected it to Laptop, it gives a message that i am connecting high-speed device into a non high-speed port!. the laptop has Intel(R) 82371AB/EB PCI to USB Universal Host Controller. Tell me what are the options available to me to use the full speed capabilities of the external HDD? can i use the pc card slot with a convertor to USB2.0 or the firewire port to convert it into USB2.0?? please tell me in detail as i am not a IT tech!
thanks & regards
g.venkataraman

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Comment from Leo on 2005-11-29

2005-11-30T04:41:33Z

Have you tried plugging it into the other USB ports? That's what I would try.

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Comment from Justin on 2005-11-29

2005-11-29T21:00:42Z

I have the "enhanced" controller but when I plug in my IPFONES internet phone, I am told that the device is NOT connected to a high Speed USB port. I am then offered a list of high speed ports on my computer. Do you have any advice on what I can/should do? Thanks for your help

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Comment from Leo on 2005-11-02

2005-11-03T06:36:49Z

It really depends on the device, some will, some won't.

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Comment from Luis Beato on 2005-11-02

2005-11-02T23:16:08Z

Hi!

I read your helpful article to check USB ports version and I confirmed that I dont't have the magic "Enhanced" word. So I have USB version 1.x..;(.

My question is: can I use a USB 2.0 device in a USB port version 1.x? Is just a question of speed or I should worry about compatible problems?

Thanks in advance,

Luis Beato

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Comment from Leo A. Notenboom on 2005-10-29

2005-10-30T01:05:37Z

It varies, I believe. Some BIOS's have supprot for USB, but what's more common right now is that it's windows that detects the hardware (via Plug'n'play) and loads the appropriate drivers.

If other USB devices work on that computer, and only the external hard disk fails, I'd look to the manufacturer see if it needs some kind of additional support.

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Comment from James on 2005-10-29

2005-10-29T17:54:42Z

I found your article very informative. It jogged the memory cells in my head. I do have one question about the USB ports. What announces to the Device manager that you have USB 2.0? Is this stored in the BIOS or in WINXP itself? The reason I ask is that with all the updated drivers, I have a Logitech Fusion camera and a MAXTOR One touch external USB hard drive that will not work on my PC. However, they will work on my wife's 2 computers that has just about the same motherboard. MSI NEO2-F (mine), MSI NEO4 (hers). Any thoughts? Thanks in advance.

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Comment from Leo A. Notenboom on 2005-10-27

2005-10-27T15:43:47Z

I don't believe it's a one to one mapping. It's more a reflection of how the drivers are structured to provide support for both 2.0 and 1.0, and other things that I can't begin to guess at.

As I said in the article, if it lists enhanced, and all of your ports are built in to the machine, I believe that they are all 2.0.

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Comment from Gautam on 2005-10-23

2005-10-24T05:41:17Z

thanks so much for showing me how to check to see if i have USB 2.0. I did as you said and see the following:

Intel(R) 82801DB/DBM USB Universal Host Controller - 24C2
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C4
Intel(R) 82801DB/DBM USB2 Enhanced Host Controller - 24CD
USB Root Hub
USB Root Hub
USB Root Hub

OK, so my question is this: Only one of the listed controllers says "enhanced", does that mean that only one of my usb ports is 2.0 and if so how can i find out which one. A related question; I actually have 4 USB ports on my computer, why are only 3 showing up, or do these listings not corelate directly to each individual USB port?

Thanks for your help,
Gautam

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Comment from vivian on 2005-10-19

2005-10-19T09:13:17Z

I have purchased the Belkin Hi Speed USB 2.0 DVD creator and can't make it work. It only shows b/w, stripes and 'jumping' frames. Doesn't matter what software I use. I'm thinking that it hasn't been plugged into a USB 2.0 port. However, whilst my Device manager states that I do have an Enhanced USB port, I haven't been able to make it work despite trying all USB ports on my workstation, on my laptop and on a Dell slim line computer on our network. Is it likely that I don't have a USB 2.0 port after all on any computer. We build my workstation ourselves, the Dell is 3 years old and the laptop is a Dell Inspiron I bought late 2004.

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Comment from Leo on 2005-10-09

2005-10-09T20:37:37Z

For a desktop PC. sure. You can buy a USB 2.0 add-in card - they're not expensive.

Not as sure about laptops - I believe there are USB 2.0 pcmcia cards available.

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Comment from Carla on 2005-10-09

2005-10-09T15:38:26Z

Thank you! Very helpful.
Now, if I don't have USB 2.0, is there a way to upgrade to that? (I, too, want to buy an Ipod Nano that is only supported by USB 2.0).

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Comment from Leo on 2005-10-03

2005-10-03T16:28:44Z

While it's certainly *possible* for a computer to have different types of USB ports, I don't know of any that do. Typically when the manifacturer makes the switch to 2.0, there's no reason for there to also be a 1.x USB port.

So I would assume that all USB ports on the computer are the same.

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Comment from Murdoch on 2005-10-03

2005-10-03T14:56:13Z

I think Simon is asking the same question I was going to ask. If you have say 4 USB ports in your computer, and you have the "Enhanced PCI to USB Host Controller" showing in your Device Manager, does that mean that ALL 4 USB ports support 2.0? Or is it maybe only one of them? How can you tell which port does?

Other than that clarification, thanks for this article! First google hit off the bat answers my question. Cheers.

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Comment from Leo on 2005-10-01

2005-10-01T17:28:41Z

It means that the USB on your PC supports 2.0. You can still, of course, plug in 1.x USB hubs which would only support 1.x, and 1.x devices.

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Comment from Simon on 2005-10-01

2005-10-01T13:18:06Z

If an "Enhanced PCI to USB Host Controller" is present does that mean that ALL USB connections on the PC and shown under Device Manager are USB 2.0?

Thanks

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