Peerless-AV PAP-UNV Universal Projector Adapter Plate (Black)Projector adaptor plates that are either universally compatible with most projectors, or uniquely compatible with one projector make or model. Peerless AV adaptor plates for projectors allow users to choose between Peerless AV wide array of applications and accessories to mount a projector anywhere. Most models feature security fasteners for theft resistance, and flip down hinges that allow easy access to the projector for maintenance, cleaning, etc.