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Older computers may have only the slower USB 1.1 interface. Adding USB 2.0 isn't difficult, but it does require a hardware addition.

My computer apparently has only USB 1.1. Is there a download or something to upgrade to 2.0? What do I need? Will I hurt anything if I plug in a USB 2.0 device to my USB 1.1 socket?

Unfortunately, upgrading from USB 1.1 to 2.0 requires more than software; it actually requires new hardware.

The good news is that the hardware is typically inexpensive. In addition, depending on the 2.0 device, it's possible, though not guaranteed, that it'll work just fine with your 1.1 interface.

But it certainly won't hurt anything to try.

Let me explain...

The biggest visible difference between USB 1.1 and 2.0 is that 2.0 is faster.

The biggest invisible difference is that a USB 2.0 interface requires different hardware - hardware that is capable of the higher speeds that USB 2.0 supports.

So, to "upgrade" from 1.1 to 2.0 typically isn't a software upgrade at all; it's an addition of hardware. For desktop machines you can purchase a relatively inexpensive USB 2.0 interface that you add to your machine. For your laptop you'll probably purchase a PCMCIA card that adds a USB 2.0 interface.

In either case, if the machine already had a 1.1 interface, that's still there, and still runs at 1.1 speeds. The old interface is still perfect for devices that don't require the speed supported by 2.0. The new interface then can support the higher-speed devices.

Now, a 2.0-capable USB device doesn't necessarily require USB 2.0. A great example is the Maxtor external USB drives I use for backup. If I plug them into a computer with only a USB 1.1 interface, they work just fine. They're slower, much slower in fact, but they do work well.

"...a USB 2.0 interface requires different hardware - hardware that is capable of the higher speeds that USB 2.0 supports."

In most cases, in that situation, about the worst that will happen, besides the slower performance, is that Windows may pop-up a message indicating that "this device could perform better if plugged into a USB 2.0 interface". Which is quite true, and otherwise benign.

That's not true for all USB 2.0 devices. Some specifically require a USB 2.0 interface because they require the faster data rates. But again, plugging them into a 1.1 interface won't damage anything. The software supporting a device that requires 2.0 should simply report that the device won't work or that some features may be disabled. At worst, the device won't work or some features may be disabled - without any warning.

A final note on USB cables: Cables are not devices and aren't "recognized" by USB interfaces or devices. Plug just a USB cable into a computer's USB interface and nothing will happen until you plug a USB device at the other end of the cable.

USB 1.1 and 2.0 cables are essentially identical. The difference is simply that the USB 2.0 cables are of a higher quality required to support the higher data rates possible with 2.0. You can safely use a 2.0 cable for any USB application. You can probably use a cable marked as 1.1 for many 2.0 devices. I certainly have, but if you experience problems, replacing it with a cable rated for USB 2.0 would be one of my first steps.

Article C2869 - December 12, 2006 « »

Leo Leo A. Notenboom has been playing with computers since he was required to take a programming class in 1976. An 18 year career as a programmer at Microsoft soon followed. After "retiring" in 2001, Leo started Ask Leo! in 2003 as a place for answers to common computer and technical questions. More about Leo.

Not what you needed?

February 22, 2007 4:23 PM

What is the difference in the USB hardware from 1.1 and 2.0?

January 16, 2008 5:11 AM

Recent helped a friend with very sick Dell Dimension 2400. Had to format hd and install XP Pro and SP2. However, after talking to Dell tech support (via India) they tell me that shouldn't installed SP2 because the Mass storage device, mulitmedia devive and USB 2 need SP1. I will need to reformat the HD and install SP1-whats' up with that? Those that make sense to you? Do you have any recommendations?

Leo A. Notenboom
January 20, 2008 4:26 PM

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It makes zero sense to me. SP2 should support everything SP1
does and more, and with more security and bug fixes.


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Graham Block
January 24, 2008 3:13 PM

Thanks for your web help. I'm still not convinced (per an old magz article) that a usb1.1 motherboard will/can process/handle data any faster. Is it not the case that the card will only ensure COMPATIBILITY with usb2.0 device attachments? Regards.

Leo A. Notenboom
February 2, 2008 11:18 AM

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*Motherboards* are neither USB 1.0 or 2.0, they're just
motherboards. An add-in card attaches to a highspeed buss on
the motherboard and should support 2.0 speeds just fine.


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February 24, 2009 4:47 AM

Thanks for your reply..I was searching for this answers whole day...I will try to buy some adapter for my hard drive which is with USB 2.0
Anyhow, thanks for your info..

March 12, 2009 12:53 PM

I have a xfx nforce 780I sli motherboard on winxp sp3, but all my usb devices are opperating at 1.1, how do fix this. I'm always getting the messages that "this device can preform faster". thanks

July 28, 2009 11:38 AM

the problem i has it i has to reinstall xp pro and now that i have its saying all my usbs are a non 2.0 when before they all was 2.0

Doug Barnhart
August 1, 2009 4:04 PM

I have a Dell Dimension 2400. Will any of the USB2 cards with a PCI interface work or do I need to look for some other specifications?

November 27, 2009 8:25 AM

can i download usb2 drivers and convert from 1.1 to 2.0 without having to install any additional hardware???

Please read the article you just commented on. It answers this very question.

December 22, 2009 10:52 PM

Hi. My newer EMachine claims to have 6 2.0 usb ports. Device manager reads "enhanced", or should I say one line reads enhanced pci, the other standard hcd. The problem is my usb760 modem is a speed demon if using the back ports, while speeds are halved while using the 2 front ports( confirms this over and over.). My Toshiba pen drive seems to work just as fast in either the front or back. The guy at the computer store, and various other sources, assure me there is no physical difference between 1.1 and 2.0; that it is all in the drivers. I noticed you state the hardware is different. Is there a physical difference? If so, what is it please? If I find the guy at the computer store is jerking me around...I WILL punch him in the nose! Well, maybe I'll just give him a verbal chastising, and set him straight. Thanks in advance.

Terry Matthews
December 18, 2010 11:30 AM

How critical is the availability of standard Enhanced PCI to USB host controller on the mother board? I have an Intel Monterrey Motherboard 1.4ghz R0 running XP professional but it does not show enhanced capability, so what do I need to do to upgrade to 2.0 USB?

January 19, 2011 11:46 PM

i have used a pcncia to usb 2.0 card to upgrade my usb 1.1 to 2.0 but whenever i try to install it the windows gets hang or freezes, after many trails i have install it but it can't be started and error massage shows that due to non avaibility of resources this device can nt be started
please help

Typically that's a driver issue - I'd contact the manufacturer of the card to see if they have updated drivers or can suggest a solution.

John Paul
March 18, 2011 10:20 AM

My computer is Compaq Presario SG3053IL. The product website says my computer has USB 2.0, but I keep getting "your device can work faster..." message and in the device driver page, I do not see "enhanced...." mentioned under USB. I bought a PCI USB card and tried it and I get a yellow "?" icon on the device driver page. The plug and play does not seem to work here. Please help me. Thanks Leo.

May 14, 2011 2:49 PM

I bought a Logitech C160 webcam. I get an error message saying that cam would run faster if plugged into a 2.0 port. The cam should run on a 1.1 but does not. Do I need to upgrade to a 2.0 or not? The cam does not show video while using Skype, is this problem a lower USB 1.1 or is it something else. I get an error message saying DirectX is not installed, but it is. Could problem be caused by a 1.1 port?

DirectX and USB are pretty much unrelated. Not sure why you're getting a directx not installed message, or what program you're getting it from. Does your computer have USB 2.0 ports? If not, you may need to upgrade.

September 18, 2011 5:38 PM

Hi Leo, I read your article on upgrading to a usb 2. Great info. I have an older thinkpad R40e and running xp on it. The usb's are 1.1 and I wanted to put in a pcmcia card 2.0 and use it for tethering with easy tether. Some people have told me it will run much faster for tethering and others have told me it will run the same because of the speed it is coming thru from the carrier on the cell. I am getting a 1.52 mbps and was wondering if the USB 2.0 would increase the speed majorly. Great Site!!! Thanks in advance for your help. Rob

Rajesh panchgalle
September 29, 2011 6:21 AM

I have this Compaq Armada 300. I want to upgrade from USB1.1 to USB2.0, as my laptop is just not recognising my Vodafone Broaband lite USB 3 G USB modem-k3570-z.What'd the problem sir?

November 29, 2011 11:14 PM

I have a hp pavilion dv 4 series laptop. The problem is that it has only 2 usb port. So i bought a multiple usb port device.When i am using it, i keep getting a message that ur device can work faster if it is put into a usb 2.0 port. From the device manager i figured out that my laptop has a usb 2.0 port( coz i saw enhanced on that). But i don't know how to activate that 2.0 port for my device. Please help.

January 12, 2012 7:43 PM

Hello Sir Good morning, i had a issue is like, 3 days before i purchased Lenovo Slim USB DVD Burner. but its not working. so i search in ur article checked in my system. its sure its USB 1.1 only later i upgraded to 2.0 with the card. Now its working Fine ...... Thank U very very very much. I love U.
November 7, 2012 9:01 AM

I have an old EPoX EP-8K9A7I motherboard. The manufacturer says it supports USB2.0 but when I plug a USB2.0 device it tells me the "this device can perform faster..." thing, and gives me a list of USB2.0 ports that i can connect to. All great, but those ports don't exists physically. All the USB ports that I have are on-board. Is it anything I can do about or I need a hardware upgrade (it will be a little difficult, as I have all my PCI slots taken-one is broken).

Ole F.
November 9, 2012 3:49 AM

How about upgrading from usb 2.0 to usb 3.0. are the principles still the same? The cable for an external usb 3.0 harddisc is so much thicker than for usb 1 and usb 2.0. is it possible to put hardware for usb 3.0 into a PC or in this case a satellite receiver with an usb 2.0 plug?

Mark J
November 9, 2012 9:25 AM

If you have a desktop PC you can get a USB 3.0 expansion card. If you have a notebook, there would be no way to do this as the PCMCIA option is not a viable option for upgrading to USB 3.0.

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