The Focusrite Scarlett 2i4 (2nd Gen) is a 2 in / 4 out USB audio interface designed for digital recording applications, featuring two combination inputs with new Scarlett mic preamps and newly-designed instrument inputs. The Scarlett 2i4 (2nd Gen) improves every aspect of the original Scarlett 2i4's design boasting super low-latency, new metal gain controls and an improved design. The 4 outputs along with the MIDI connectivity also make the Scarlett 2i4 perfect for live use, allowing you to connect a range of external instruments such as outboard synths.