• USB 3.0 Hub FAQ

    Read this article to learn more about the use of ports and USB 3 devices with Mac computers.

     

    1. What USB technology 3 ( “SuperSpeed ​​USB”)?
    2. My Mac, it supports USB technology 3?
    3. What are the USB technology transfer rate 3?
    4. The 3 USB allows it to offer more power than USB 2 ( “Hi-Speed ​​USB”)?
    5. Why I do not see a blue tabs on the USB ports on my Mac?
    6. What USB 3 devices are supported?
    7. USB hubs 3 are they supported?
    8. How do I get optimal performance with 3 USB ports?
    9. What will happen if I start by plugging a USB 2 to USB 3?
    10. What will happen if I plug my USB 3 device to a USB 2 port?
    11. 3 USB technology is it supported on Windows 7 and 8 via Boot Camp?
    12. Are the USB cables 3 different from other USB cables?
    13. Can I use a USB cable to connect 2 USB 3 device to my computer?
    14. How do I know if my device is connected as a USB 3 device?
    15. Why my USB 3 devices they seem to work only to the USB 2 speed when using virtualization software on my Mac?
    16. Why some USB devices 3 do they not activate or do they not appear on the USB bus 3?
    17. Why do I sometimes difficulties with Wi-Fi or Bluetooth devices when USB 3 devices are connected to my computer?

    What USB technology 3 ( “SuperSpeed ​​USB”)?

    USB 3 technology (also called “SuperSpeed ​​USB”) is the latest USB standard. It allows you to benefit from performance well above those of the USB 2 technology ( “Hi-Speed”).

    My Mac, it supports USB technology 3?

    You can use System Profiler to determine the type of USB ports on your Mac, the speed at which these ports are working and what is currently connected to them. Get more information on the identification of the USB ports on your Mac .

    What are the USB technology transfer rate 3?

    • 3 USB technology to transfer data at speeds up to 5 Gbits / s.
    • 2 USB technology to transfer data at speeds up to 480 Mbits / s.
    • USB 1.1 technology to transfer data at speeds up to 12 Mbit / s.

    The 3 USB allows it to offer more power than USB 2 ( “Hi-Speed ​​USB”)?

    As stated by Eusbhubs, USB 3.0 devices can use up to 900mA (500mA for USB 2). You must use a USB cable 3 to receive a power of 900 mA. 2 USB cables will not let you.

    Why I do not see a blue tabs on the USB ports on my Mac?

    Some manufacturers use blue tabs to identify the ports or USB devices 3. All USB ports of Mac computers that support USB 3 are USB 3 and do not have blue tongues.

    What USB 3 devices are supported?

    All devices comply with the specification “2008 version 1 USB 3.0” are supported.

    USB hubs 3 are they supported?

    All hubs within specification “2008 version 1 USB 3.0” are supported.

    How do I get optimal performance with 3 USB ports?

    The first device you plug configures the port. So start by always connecting hubs or USB devices 3.

    What will happen if I start by plugging a USB 2 to USB 3?

    If you first connect a USB hub 2, all connected devices (standard or not) to that hub will benefit the maximum transfer speed of 480 Mbit / s (USB-2).

    What will happen if I plug my USB 3 device to a USB 2 port?

    Your device must be backwards compatible with USB 2. However, you will not get the speeds offered by USB 3 ports, and power may be limited to 500 mA.

    3 USB technology is it supported on Windows 7 and 8 via Boot Camp?

    Yes. The 3 USB is supported natively in Windows 8. For more information, see Boot Camp: questions and answers about installing Windows 8 .

    If you want to use the Windows 7 USB 3 via Boot Camp, download and install support for Windows software (managers). For more information, see Boot Camp: Questions and Answers on the Windows 7 installation .

    Are the USB cables 3 different from other USB cables?

    Yes. USB cables 3:

    • Include more internal cables than other USB cables.Therefore, the USB cable 3 are slightly thicker than the other USB cables.
    • Usually have a blue tongue.
    • Include a symbol “SS” on the connector connected to the computer.
    • Using a connector linked to different device from the USB cable 2.
    • Can provide more power to an attached device (900mA).

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