Excerpt: The Rane TTM 57 SL is a high quality DJ Mixer with an interface all in one unit. This mixer works with the software called Serato which I am very familiar with. There are a lot of effects that come right on the mixer! This unit is perfect for the mobile DJ who also wants to have is computer be a part of his set up. I have been using this mixer from the early part of this year up till now.