Aluminum housing and side plates, with a steel base and divider, measures 4" x 5" x 5 5/8". Base is configurable to have a combination of two 3/4" knockouts or two 3/4" EMT stubs. Accommodates a variety of power outlets (duplex, decorator, GFCI and up to 30A twist lock). Use Wiremold AVIP to provide communications and A/V. Receptacles and wall plates are sold separately.