Cam Link 4K has a USB 3.0 connector.
If you don't know if your computer has USB 3.x ports, then please see this article:
How do I know if my PC has USB 3.x ports?
Cam Link 4K does not work with USB 2.0 ports at all.
If you don't know if your computer has USB 3.x ports, then please see this article:
How do I know if my PC has USB 3.x ports?
Cam Link 4K does not work with USB 2.0 ports at all.