The CB-22P Classroom Ceiling Enclosure from FSR is a 2x2' ceiling enclosure designed for classrooms, conference and meeting rooms with a projector and control equipment. The CB-22P has ample room for two full rack pieces of equipment or four half-rack pieces on the built-in shelves. The unit includes an external AC receptacle, a switch/circuit breaker on the ceiling surface, and five AC outlets ergonomically spaced to allow room for wall warts inside the enclosure. You can insert a ceiling tile via the white rim door. This unit features an industry standard 1.5" NPT fitting which allows you to hang projectors of up to 50 lbs (including mount accessory). This female pipe fitting canbe installed in multiple positions to optimize projectorplacement. A fan kit and a variety of mounting kits are available separately.