StarTech.com Desk Mount Quad Monitor Arm, 4 VESA Displays up to 30' (24.8lb/11.3kg), Premium Ergonomic Articulating Adjustable Pole Mount - VESA 75x75/100x100mm desk mount quad monitor arm 2x2 supports 4 displays up to 30in (24.8lb/screen) - Ergonomic height adjustable/articulating | 360 rotating/tilt/swivel - Premium monitor arm w/ easy toolless assembly - C-clamp/grommet - 10yr warr.