Your Streamlined Backing Track Solution Combining two high-performance USB audio interfaces with an auto-switching feature that detects dropouts and effortlessly switches to the backup computer in an instant, the Radial SW8-USB is your complete, streamlined solution for performances that employ redundant playback systems for backing tracks. Dual USB ports allow you to connect directly to your primary and backup MacOS computers, providing eight channels of high-quality audio (as well as peace of mind) during a live performance and eliminating the need for additional audio interfaces. Performers and FOH engineers at GearNuts checked out the Radial SW8-USB and said, "Where has this been all my life?" You'll have the same reaction.High-quality audio and peace of mind The SW8-USB's dual USB inputs with separate 24-bit/192kHz converters let you connect two computers in tandem, letting DAWs on both machines utilize the SW8-USB as an audio/MIDI interface. Start/stop synchronization is also possible between both