Applies to: all current products

USB 3.1 and Thunderbolt 3/4 both use the USB Type-C connector, but they are distinct protocols. Although the ports appear identical, Thunderbolt devices will not work in USB ports. Thunderbolt includes support for USB, so most USB devices will function when connected to a Thunderbolt port, with limited exceptions. Please see this article for more details.

USB 3.1 - supports USB devices only

Thunderbolt 3/4 - supports USB, FireWire and Thunderbolt devices via adapters (Please Note Thunderbolt 4 does not officially support the use of Thunderbolt 1 or 2 devices)

It's important to check which protocol your computer's ports support before purchasing peripherals (such as an audio interface) to ensure compatibility. For example, the 2016 Apple 'MacBook Pro' models each feature Thunderbolt 3 ports as the only method of device connectivity. Conversely, the 2015 Apple 'MacBook' features USB 3.1 as the only method of device connectivity, though the ports appear to be identical.

In general, it's best to assume that any 'Type C' ports on any computer are USB 3.1 only unless the Thunderbolt logo appears next to them () or this is stated by the manufacturer. Below is a summary of Focusrite product compatibility with each port type.

For direct Type-C to Type-C connectivity, see this article: Scarlett 3rd and 4th Gen | 'USB-C' to 'USB-C' connectivity 

USB 3.1 ports

Thunderbolt 3/4 ports

If you are in any doubt if your computer has USB 3.1 or Thunderbolt 3/4 ports, please check with your computer's manufacturer. If you need any more information regarding Focusrite product compatibility, please Contact Technical Support