Designed for retrofit and new construction, Evolution Series 4'' Poke-Thru devices provide convenient access to power, communications, and audio/video services recessed below floor level - providing maximum device protection. 2-gangs of capacity allow you to configure services for the needs of your space. Evolution Series 4'' Poke-Thru devices are the perfect fit for kiosks, training rooms, classrooms, healthcare facilities or commercial buildings with open-space architecture.