usb3 vs usb 2 port


I have windows enterprise OS dell laptop. How do i know if my laptop is usb3.0 or usb2.0 type. I see modern passport external  harddrives etc advertising that they work faster with usb3.0. please advise
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10023Web site maintenance and designCommented:
Are you enumerated in device manager
path to device manager...right click on [computer] from start menu then click [manage], then choose device manager under menu on right
Computers some times designate the physical port with "blue" if you can get a light on it

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Lee W, MVPTechnology and Business Process AdvisorCommented:
While not necessarily 100% accurate, the simplest way is to look at the port color on the laptop - if it's blue, it's USB 3.

In this image, grabbed from the wikipedia article on USB 3, you can see the USB 3 port on the left and the black USB 2 port on the right.

(Source Article: )
Gary CaseRetiredCommented:
The port color SHOULD in fact be "100% accurate" => the standard requires a blue connector.    But I agree with LeeW that there may be cases where that's not adhered to.

You should really do BOTH of the things suggested above:  

(1)  Look in Device Manager under the USB section and see if you have a "USB3 Root Hub" or "USB3 Host Controller"  => this will confirm that the laptop has a USB3 port (or ports)


(2)  Look at the color of the ports -- it's not at all uncommon to have BOTH USB2 and USB3 ports ... and the color is how you can differentiate type each port is.
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Either way the USB 3 supports USB two as well, if it helps
On my old system they black on the new system they are blue and supports all my USB 2.
As I have both towers beside me here's how it looks
note on the new tower "left"  the blue USB is marked USB 3
USB 3 and USB 2USB devices on old and new machine
usb 3 will work faster :
the usb 2 speed is 480Mbs, USB3 = 5Gb , so 10x faster
note that another, usb will be appearing, usb 3.1 wjich will be 2x faster
but this does not mean the transfer speed will be so high, no rotating disk can match that speed
here all info on usb2 / 3
10023Web site maintenance and designCommented:
alright i got it ...... who do i award point too!!!
well that's up to  gudii9 really :)
Asif BacchusI.T. ConsultantCommented:
Great answers by all and yes, your ports *should* be blue if they are USB3.  May I ask something, perhaps, kinda obvious?  What is the model number of your laptop?  Have you tried just checking the model in google and/or dell's site and checking the technical specs for the laptop (usually under the support pages)?  That should detail what you have.
gudii9Author Commented:
i was checking my office lenova laptop. it has 3 usb kind of ports. Two was written like below and they are blue in color


Other USB port does not have blue color. What it means. Only those two which are blud are usb3 and the one non blue is usb2.
please advise
that is correct
Asif BacchusI.T. ConsultantCommented:
Yes, USB3 should be blue, USB2/1.1 are black.  The SS label is used by some manufacturers and usually stands for some derivation of "Super Speed", it looks better for marketing purposes than "USB3".
gudii9Author Commented:
How to go to device manager on my laptop. please advise
gudii9Author Commented:
i right clicked comptuter then properties then hardware then i saw
Intel usb3.0 Host Controller 3.0 and
intel usb 3.0 root hub
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