Triad-Orbit IO-Vector Stereo Utility Bar for Triad-Orbit Microphone StandsTriad Orbit's IO Vector takes the traditional stereo bar to a new dimension literally. IO Vector provides five points of connectivity for 3 D positioning of microphones, cameras, lights and other creative devices. IO Vector includes one IO R38 quick change coupler. The unique 3 8" mounting threads of the IO R38 can be mounted in any of the three female mounting points (front, back, top). IO R38 is also sold separately. The Addition of three IO A2A