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Do I need a power hub for MacBook Pro with USB-C?

Benjamin Kim
Since USB-C can power up to 100W, I just wonder if I need a power hub powered by AC port or USB for tethering? I always have a problem with connection issue due to power issue with USB 2.0 cable but I never used USB-C tether cable with USB-C port.

If MacBook Pro with USB-C can power enough to the camera directly, do I need to get a power hub? Tetherbooster seems to be useless with USB-C I think. If I still need a power hub for tethering, any reasons why?
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  • Permanently deleted user
    That's a bit of a misconception. USB-C can recieve power from an external source and therefore you can often use it to power/charge a device. But that does not mean that every device that has a USB-C port can power another device with 100W.

    If a MacBook were to deliver 100W to any device plugged into the USB-C port the batteries would run dry in a very short time and the heat produced would be considerable!

    So most likely you'd need a hub if you worry about power constrictions.

    However you should keep in mind that the recommended length of a USB 3 cable is a lot shorter than the recommended length of a USB2 cable. So even if more power is transmitted that odes not mean signal degredation will be eliminated.
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  • Benjamin Liddle
    NN635412303032341950UL wrote:
    If MacBook Pro with USB-C can power enough to the camera directly, do I need to get a power hub? Tetherbooster seems to be useless with USB-C I think. If I still need a power hub for tethering, any reasons why?


    The MBP/Camera power negotiations can be unreliable. If you have the option, going with a powered hub is going to be more reliable in terms of power delivery, as well as battery life on the MBP.
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