RAM MOUNTS Double Socket Arm Mount w/ 1 round 3.68" dia. base  and one 3.625" square base with VESA 75x75mm holes.

RAM MOUNTS Double Socket Arm Mount w/ 1 round 3.68" dia. base and one 3.625" square base with VESA 75x75mm holes.

RAM-D-101U-2461$121.99