# USB Details as shown by Device Driver?

**URL:** <https://www.hardwareforums.com/t/usb-details-as-shown-by-device-driver/24717>\
**Category:** CPU, Motherboards and Memory\
**Created:** [February 20, 2010, 8:11am UTC](https://www.hardwareforums.com/t/usb-details-as-shown-by-device-driver/24717 "2010-02-20T08:11:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![rahulkhajuria](https://www.hardwareforums.com/letter_avatar_proxy/v4/letter/r/b2d939/32.png) [@rahulkhajuria](https://www.hardwareforums.com/u/rahulkhajuria)\
**Post date:** [February 20, 2010, 8:11am UTC](https://www.hardwareforums.com/t/usb-details-as-shown-by-device-driver/24717/1 "2010-02-20T08:11:54Z")

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I have six usb ports in all on my system. 2 in the front and 4 at the back. Now if I go into device manager (in windows xp professional sp2) and check under “Universal Serial Bus Controller” I get the following:-

Intel(R) 82801 EB Universal Host Controller - 24D2

Intel(R) 82801 EB Universal Host Controller - 24D4

Intel(R) 82801 EB Universal Host Controller - 24D7

Intel(R) 82801 EB Universal Host Controller - 24DE

Intel(R) 82801 EB Universal Host Controller - 24DD

USB root hub  
USB root hub  
USB root hub  
USB root hub  
USB root hub

So , you see , though I have physically 6 USB ports, I just see 5 USB controllers and 5 USB root hubs. Why so? Shouldn’t there be 6 of those?

Also when I try to plug-in a device in one of the USB ports on the front side , it says “USB Device Not Recognized” . Why does this message come . There are no problems when I plug-in devices in the other 5 ports .

Thanks for your help.

Regards