Click the Apple icon located in the top left-hand-corner of the screen.
Select About This Mac.
Within the About This Mac window, click More Info…
System Profiler will open up. Select USB located under Hardware in the Contents column on the left side of the window. If you have USB 3.0 ports, you’ll see a USB 3.0 selection.
Check the physical ports on your computer. If you see a blue USB port, it’s USB 3.0. It may also be marked on the outside of the port with either “SS” or “3.0.”
If you don’t see any blue ports or markings but you’re still not sure, click the Start menu and openControl Panel.
Within Control Panel, open System and Maintenance then Device Manager.
Scroll down until you see Universal Serial Bus Controllers and open that.
Look for any item that has USB 3.0 in the title. If you see that, you’ve got USB 3.0. Otherwise, you don’t.
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