What's the difference between USB 3.0 SuperSpeed vs High-Speed Bus?

Discussion in 'MacBook Pro' started by sunsluv, Jun 21, 2012.

  1. sunsluv, Jun 21, 2012
    Last edited: Jun 21, 2012

    sunsluv macrumors newbie

    sunsluv

    Joined:
    Mar 18, 2012
    Location:
    Arizona
    #1
    What is the difference between the USB 3.0 High-Speed Bus vs. the USB 3.0 SuperSpeed Bus on the 15" 2012 MacBook Pro w/Retina Display? Is one faster than the other?

    When I connected my new Seagate GoFlex Desk external hard drive, I was able to figured out that the USB 3.0 SuperSpeed Bus is located next to the SD Card Reader on the right side.

    This is from the System Information Hardware Overview:
    (the info below is the same for both)

    USB 3.0 High-Speed Bus:

    Host Controller Location: Built-in USB
    Host Controller Driver: AppleUSBXHCI
    PCI Device ID: 0x1e31
    PCI Revision ID: 0x0004
    PCI Vendor ID: 0x8086
    Bus Number: 0x14

    USB 3.0 SuperSpeed Bus:

    Host Controller Location: Built-in USB
    Host Controller Driver: AppleUSBXHCI
    PCI Device ID: 0x1e31
    PCI Revision ID: 0x0004
    PCI Vendor ID: 0x8086
    Bus Number: 0x14
     
  2. doh123 macrumors 65816

    Joined:
    Dec 28, 2009
    #2
    High Speed USB = USB 2
    Super Speed USB = USB 3

    I think its just referring to the fact it can run both high speed and super speed, but people don't usually use those names. So a USB 3 port running High Speed basically means it has a USB 2 device running in it so it cannot run Super Speed.
     
  3. sunsluv thread starter macrumors newbie

    sunsluv

    Joined:
    Mar 18, 2012
    Location:
    Arizona
    #3
    Thanks for clarifying this for me. I guess I can use either hub since they are the same... :)
     
  4. Stetrain macrumors 68040

    Joined:
    Feb 6, 2009
    #4

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