Providing compatibility between computers and professional equipment, the PLI04USB is a dedicated interface to feed unbalanced stereo audio from USB ports to balanced mic inputs of mixing consoles. Supporting 44.1, 48 and 96 kHz sample rates it provides high quality digital-to-analog conversion with 24-bit resolution. Signal output is transformer balanced on standard wiring male XLR connectors with individual isolating switches for the left and right channels.. Featuring a mono summing switch, the unit effectively doubles as a signal splitter to route the mono signal into separate audio systems. In addition, the PLI04USB features a headphones output with level control for convenient monitoring and a ground lift.