Chief's VPAU enables projectors to be positioned in multiple orientations including popular vertical and portrait digital signage applications. A great solution for projectors that are equipped with multidirection capabilities. Requires a column and ceiling adapter, ordered separately. See accessory tab on product pages for more. Independent roll, pitch and yaw for quick and precise projector registration Quick connect / disconnect for easy installation and servicing Maintains registration when disconnected and doesn't affect preset adjustments Solid steel construction Universal interface compatible with 6 projector attachment points Adjustable mounting legs and feet Not compatible with other Chief projector interface brackets SLB/SLM/SSB/SSM