Slim round design maintains a very low profile with the surface level, elevating a mere 3/8" above the desktop. Make the most of an existing 3" diameter hole cut by incorporating power and USB connectivity rather than simple cable pass-through. Or add it to any workstation with easy installation - simply drill a 3" diameter hole size, insert from above and hand tighten locking collar from below. Single power outlet rated 15A/125VAC and dual 2 amp USB charger. Plated or powder coat finishes available.