Chief RSAU project mount Ceiling BlackRSAU, Universal RPA Mini Projector Mount The RSA offers a compact design for smaller projectors with all the same great features as the standard RPA Series. 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