I am looking to buy this the Pro 40 second hand. Looks in good condition and the price seems nice. I do wonder if I will need to find a driver someplace for it to work and if so where i could find one. I have a Presonus Firestudio the 8 channel and I can not find any drivers to download and work for me. Let me know if any one is using the Pro 40 and running Catalina. Thanks