Argosy HALO-G-L-B-S Halo G Plus (Halo G, Accessory Tray, 2 D8 Monitor Arms)Proprietary stabilization technology makes HALO. E the most stable sit stand desk in its class. Motorized actuators accommodate evenly distributed loads up to 200 lb. 3 height programmable memory allows you to set a desk height anywhere from 27" to 42". Combine rack gear with stand alone electronics on shelves specially designed for HALO angled racks. Position near field monitors on IsoAcoustics loaded speaker mounts available in 3 sizes up to 70 lb.