Serato DJ Hardware Interface SL4 Black

Inputs for four turntables or CD decks, switchable in any combination
Two high-speed USB 2.0 ports for seamless DJ changeover and back-to-back performance
Aux Input for session recording or LiveFeed
48 kHz and 96 kHz sample rate switch on the SL4 rear
Built in galvanic isolation for the purest audio signal