Will USB-C port dongle slow my external drive?

Discussion in 'iMac' started by yalag, Jun 15, 2017.

  1. yalag macrumors 65816

    Nov 18, 2007
    I bought the new imac without realizing that it doesn't have a thunderbolt 2 port. So my raid drive cant connect directly, I have to buy a dongle for usb-c. Is the dongle going to slow my external drive down?
  2. CWallace macrumors 603


    Aug 17, 2007
    Seattle, WA
    TB3 is fully backwards compatible with TB2, it will just run at TB2 speeds.

    So you should see similar performance with the Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter as you did with the TB2 ports on the older iMac.

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