– Compact design is smaller than the RPA by 1/3 and includes the same great features – Independent roll, pitch and yaw for quick and precise projector registration – Quick connect/disconnect with convenient lamp and filter access on most projectors – Disconnecting maintains registration and doesn’t affect preset adjustments – All-Points Security steel-into-steel locking hardware at all connection points protects against theft – Multiple installation options including: flush mount to ceiling, use 0.25″ threaded rods, or use a 1.5″ NPT column