We have a gauge in our portable exhibition display with a 3 inch cutout. We originally bought a hub with two outlets and USB ports, but when we decided to use the tabletop for multiple work displays, we had to connect four power supplies that wouldn't fit in the previous hub. into the cutout and allowed us to route the cables under the counter to an extension that housed four power supplies. It's not a high-end replacement, but it looked great on our laminated black countertop, and the bonus was that it cost a fraction of the original grommet. Very happy with this purchase.
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