Conference Table Power Grommet with Electric Power & USB Charging Modules, Desk power grommet can offers 2 power outlets with 2 USB ports. Convenience outlets are perfect for stationary accessories like lamps, computers, or monitors which do not need to be accessed often allowing more room to plug in temporary devices like laptops, tablets, and mobile phones above the work surface where they are more easily accessible. ETL /UL certified and in compliance with national standards of safety standards desktop power grommet is ideal for desks, tables, and benches with rear access.
Drill a 3 1/8" hole in the desk or surface you want to use
After that you just need to insert the power grommet through
and put back the ring underneath the desk, so it can fixate you grommet.