Power Tower V2 Total Diameter: 2⅛" Full Extended Height: 9" Depth Below Countertop (when fully retracted): 12" - Features: New Slim Design3-plug retractable power tower 2 USB Charging Ports Sits flat with countertop, perfectly hidden when retracted. cUL certified Power Tower comes with a standard 3-prong non-GFCI plug. If being installed within 2 feet of water, we strongly recommend the unit be plugged into a GFCI outlet.