Designed for maximum versatility making it perfect for live sound, home recording, content creation, and live streaming with included Pro Tools | First recording software and The Musician Collection of 23 plugins and instruments. Equipped with 4 Onyx mic press offering up to 60dB of gain and ultra-low noise performance. Perfect for microphones popular with content creators that require high-gain preamps. Lay down your tracks in incredible 24-bit/ 192kHz quality for the cleanest recordings possible 2x4 USB I/O allows you to create two custom mixes on your computer to send back in to the mixer, great for situations when you need to monitor specific tracks during playback in addition to the full mix. With 24 different FX options, from reverbs to delays, adding some drama to your sound is easy easy. easy. easy (delay, get it?). With a single knob, you can blend between monitoring your computers output and a direct feed from the mixer. Great for recording overdubs alongside a pre-recorded track. Looks and appears in like new condition. Unsure of actual previous use. Has been powered on with no further testing. See pictures for details.