mac: the audio interface does not appear in the system preferences output input

Running Catalina OS. Unfortunately, connecting my Focusrite Saffire 6 interface is not recognized in System Preferences> Sound> Output Input. Very frustrating. I am using the correct high-speed USB cable and the interface is shown in my USB tree (About this mac> System Report> Hardware> USB) but it only shows & # 39; Internal speakers & # 39; in Exit and input of system preferences. I can't find anything online about how to make the Mac recognize the interface. Just an article about deleting temporary files that I did without success. I also downloaded drivers for the USB 1.1 driver, although I'm pretty sure I'm running 2.0.