The Extron MLM 200 AAP is a five-gang wall mounting kit with a four single space AAP™ opening designed for use with the MLC Plus 200 Controller, EBP 200 eBUS® Button Panel, and NBP 200 Network Button Panel. The MLM 200 AAP fits into a wall, Extron SMB Surface Mount Box, or EWB External Wall Box. The kit ships with both black and white faceplates and volume knobs, as well as a mud-ring. The MLC Plus 200, EBP 200, and NBP 200 are sold separately.