I have a newer model Scarlett 2i4. I replaced a much loved M-AUDIO 410 with it once the latter no longer functioned properly under Windows 8 and then 10. I run my Katana into the Scarlett and record everything in Tracktion 7. I've played with Katana's USB and tried this and that and found going analog into the Scarlett to work best for me. There are other very good devices aside from Focusrite. Roland makes a fantastic interface as does Edirol. Good luck.