Compared: USB 3, USB 4, Thunderbolt 3, Thunderbolt 4, USB-C - what you need to know
![Compared: USB 3, USB 4, Thunderbolt 3, Thunderbolt 4, USB-C - what you need to know](https://photos5.appleinsider.com/gallery/37296-69975-USB-C-connector-xl.jpg)
With the varieties of USB and Thunderbolt terminology floating about, as well as new versions being adopted by Apple and other device producers, sorting out the mess can be a problem. Here's what you need to know about USB 3, USB 4, Thunderbolt 3, and Thunderbolt 4.
![](https://photos5.appleinsider.com/gallery/37296-69976-22408-27046-tb3-assembly-xl-xl.jpg)
Compared: USB 3, USB 4, Thunderbolt 3, Thunderbolt 4, USB-C - what
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