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USB 1.1, 2.0 or both?

romoshka
romoshka asked
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Last Modified: 2010-04-25
Another USB question.  In searching the archives I can not find a query like mine.  Do I have 1.1 or 2.0 or both?  In device manager under USB controllers the follwoing lines appear:

AuthenTec AE53500 TruePrint Sensor
USB Root Hub
USB Root Hub
USB Root Hub
USB Root Hub
USB Root Hub
VIA Rev 5 or later USB Universal Host Controller
VIA Rev 5 or later USB Universal Host Controller
VIA Rev 5 or later USB Universal Host Controller
VIA Rev 5 or later USB Universal Host Controller
VIA USB Enhanced Host Controller

In my reading I have learned that 'enhanced' indicates 2.0 but what about the others and which of the 4 ports on the back is the 2.0 (assuming one is 2.0).  
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The controller itself looks to be 2.0, so all of the ports on the back of your system should operate at 2.0 speed (which of course is backwards compatible with 1.1).  To be 100% sure, if you have Win XP, take any USB 2.0 compatible device (ie. printer, usb key) and plug it into the ports.  If it is plugged into a USB 1.1 port, Windows will report that you have a high-speed device plugged into a non-high speed port.

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Commented:
Ok!!!!  Great!!!  And...now that I have read a bit more and forced my brain to think I realize that I have a generic hub that is most likely 1.1 and that may be why my iPod encourages me to use a high speed port.  Off to the store to acquire a 2.0 hub.  Thanks.

Commented:
You are correct about "Enhanced Host Controller" means that USB2 is supported, this only needs to appear once in the device manager for all the ports to be USB2. On my PC I've got 8 USB2 ports, but only 1 Enhanced Host Controller.
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For more info on usb, look here :

http://www.usbman.com      

Commented:
The easiest way I can think of:  Plug a known USB 2.0 device in.  If it is only USB 1.1, then you will get a pop-up in the bottom right hand corner stating something about "HI-SPEED DEVICE" in the title.  I don't have anything here with me at work today.  Perhaps someone else can confirm this.

best of luck,
harperse
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hey romoshka, any luck with those usb ports?

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Commented:
All is well now.  Thanks.  Glad to have found this site!
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