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Why Do Some Laptops Have Both USB 2.0 and USB 3.0 ports?

Discussion in 'General Hardware' started by BloodTotal, Dec 25, 2012.

  1. BloodTotal

    BloodTotal New Member

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    I thought that USB 3.0 was backwards comparable with USB 2.0. So if they are, then what's the point of having both 3.0 and 2.0 on your laptop?

    A google search for this proved unsuccessful.
  2. Batou1986

    Batou1986

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    Because usb 3.0 isn't backwards compatible with everything tho it should be and usb 2.0 hub controllers are cheaper/integrated.
    Also usb 3.0 needs drivers before it will work.
    BloodTotal says thanks.
  3. Bo$$

    Bo$$ Lab Extraordinaire

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    Price is the main reason :p drivers etc are small issues
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  4. BloodTotal

    BloodTotal New Member

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    I've tried finding what wouldn't work? Also, couldn't you technically use a usb 2.0 hub on a usb 3.0 input? Wouldn't it just allow more usb 2.0s? Unless the drivers don't allow that yet. Because I don't see why it can't physically work?

    Tried looking around for usb 3.0 prices, no luck. How expensive could it be?
  5. Frick

    Frick Fishfaced Nincompoop

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    Mouse, keyboards, USB memory sticks, sound cards, whatever.. Could be anything really. It is backwards compatible, but sometimes (or pretty often in my experience) it doesn't work, at least not as intended. I think it has something to do with controllers, but tbh I have no idea.
    BloodTotal says thanks.
  6. Fourstaff

    Fourstaff Moderator Staff Member

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    Cheap, a few dollars at most. That said, sometimes motherboard real estate in laptops is in short supply (especially those poorly optimised ones) it makes sense to leave them out.
    BloodTotal says thanks.

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