I think I bought this about 3 years ago, but I was so bad at using the interface that I'm selling it. I bought a simpler audio interface. It's a 4-in, 4-out USB audio interface, and I haven't used the included Cubase LE! It's practically brand new! Please, someone, make good use of this! It's the main unit, the box, and the manual, all three! - Model: US-4x4HR - Inputs: 4 - Outputs: 4 - Connection Type: USB - Included Software: Cubase LE - Accessories: Manual