USB input for connecting computers for audio input

Buy at www.musicianscart.com Numark C3USB Five-Channel Mobile DJ Rackmount 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,USB input for connecting computers for audio input,USB output for recording gigs to computer,Three-band EQ each channel,Microphone channel with EQ,Replaceable, assignable crossfader,No software drivers needed for use with Windows XP/Vista or Mac OS X,Works with almost any audio recording software,Class Compliant: this product is immediately compatible with every current and future version of Mac OS X and iOS and with Windows (98SE and up) operating systems.