Focusrite Clarett 2Pre for Recording Mac & PC Focusrite Scarlett 18i8 (2nd Gen) USB Audio Interface Focusrite Saffire Pro 14 8 In / 6 Out FireWire Audio Interface ESI Gigaport HD+ 24 Bit 8 Output Audio Interface 4. Focusrite iTrack Solo Lightning & USB Compatible Audio Interface.Focusrite Scarlett Solo USB Audio Interface with Pro Tools Apogee ELEMENT 46 Thunderbolt Audio Interface Focusrite Scarlett 2i2 USB Recording Audio Interface