Numark C3USB Five-Channel Mobile DJ Rack Mixer with USB I/O Five-channel rack DJ mixer Inputs: three phono (RCA), eight line (RCA), three mic (1/4") Outputs: Balanced (XLR), Master (RCA), Record (RCA), Zone (RCA), Headphone (1/4" stereo) Two USB jacks, each assignable to input or output No software drivers needed for use with Windows XP/Vista or Mac OS X