It delivers the same proven Onyx preamps as Mackie's other flagship Onyx products in an ultra-compact, ergonomic desktop design perfect for your home studio. Mackie has spent serious time and research creating the Onyx Blackjack Premium 2x2 USB Recording Interface. But that shouldn't mean you have to settle for the cheapest, plastic 2x2 interface available. Mackie Onyx Blackjack-If you could fit one of Mackie's flagship Onyx 1640i consoles into your workspace and budget, you probably would do it.