Adapter optoma, white. Mount our brackets using arm that comes with projector. Solution for all who use SMS mobile or wall-mounted short throw brackets (listed below) and who want to use projector arm that comes with projector when purchased. Adapter replaces SMS projector short throw pillar and SMS short throw unislide for mounting projector on bracket. Suitable for use with SMS projector short throw wall motorized, SMS projector short throw wall manual and SMS projector short throw mobile motorized.