The Rane Sixty-Four DJ Mixer features twin USB ports with 12 inputs and 10 outputs that provide computer effects processing, recording or playbacks. It is a four-channel mixer that comes with a magnetic crossfader, delivering smooth operation. You can choose any DJ software with its MIDI-mappable controllers for seamless changeovers. This powerful DJ mixer delivers powerful tracks and mixes to groove on. In addition, its Serato DJ software offers controls that let you take over library, loop, cue, SP6 sample player, sync and slip sound effects.