USB is a protocol to usually attach external devices like keyboards, mice, printers to desktops, laptops and sometimes smartphones. There's lots of different USB standards and Thunderbolt uses the same cables in some instances. You can use docks or hubs to connect multiple (USB) devices to a single port.
| Name | USB-IF Branding | Transfer Speed |
|---|---|---|
| USB 3.2 Gen 1 | SuperSpeed USB | 5 Gbit/s |
| USB 3.2 Gen 2 | SuperSpeed USB 10Gbit/s | 10 Gbit/s |
| USB 3.2 Gen 2 x 2 | SuperSpeed USB 20Gbit/s | 20 Gbit/s |