​Extron’s RGB 406 is a universal, two gang, mountable interface that combines the flexibility of a full featured interface with high performance standards and specifications. With the RGB 406 both computer video and audio may be interfaced. The RGB 406 provides active audio buffering to convert low level, unbalanced PC audio signals into a line-level, balanced audio output. The benefit of balanced audio is that the signal is cleaner and can travel longer distances.