MAudio Torq Connectiv Vinyl CD Pack - 9900-51978-00 includes Torq DJ software &gt; instantly turn any Mac or PC into a powerful DJ rig includes Conectiv 4 x 4 USB audio interface with 16-bit/48kHz fidelity &gt; CD quality and beyond 4 RCA inputs configurable for line-level or phono signals &gt; connects to all standard DJ mixers, turntables and CD players supports MP3, AIFF, WAV, WMA and AAC files &gt; cue, beat-match and mix standard digital audio files use as a self-contained digital system, multi-effects processor or slave from included Control CDs/vinyl &gt; totally flexible