I recently bought a USB type-C hub for my MacBook Pro. I found the data transfer speeds to be quite low (from my USB 3.0 external hard disk). I suspect that the USB hub doesn't support USB 3.0 data transfer speeds. How can I confirm this?
- Open System Information app before you plug in your hub.
- Navigate to "USB" in the list and click.
- Note which information isn’t about the device you’re about to test.
- Then plug in the hub and refresh the window contents.
Here is an example of mine. You can see it is identified as USB 3.0 capable, speed up to 5Gb/sec: