Numark DXM01 USB DJ Mixer Dual USB ports: Mix audio files directly from computer together with records and CDs Record directly to computer Works with any audio file format Works with all dual soundcard-compatible Windows and Mac audio software Digital mixing: 24-bit digital mixing &gt;103dB S/N ratio online inputs Noise-free digital controls Numark D-Type crossfader: All-digital fader Continuous rotary slope control Reverse switch Sub-bass synthesis: Int Audio files can be played from computer and mixed along with records, CDs, and microphone Numark's DXM01 USB mixer gets your computer audio files into the mix along with records, CDs, and microphone then lets your record mixes to your computer, thanks to its USB connectors The DXM01 USB works seamlessly with all dual soundcard-compatible Windows and Mac audio software, and all audio file formats are supported, including MP3, Windows Media, and AIFF files No software drivers are needed with Windows XP or Mac OS X, and a USB cable is included