I am still waiting for UPS to deliver the switch.
They mis-directed the shipment, which delayed delivery from Friday to Tuesday, if they complete it then.
The switch I am replacing was partly defective after about 4 months, but I continued using it without the USB outlet. 10 months later, the rest of the switch quit working. The chair manufacturer was unhelpful.
I will be happy to review the switch when it arrives and is installed.
I wish there was a way to get at least a partial shipping cost refund from UPS for the delay over the long weekend.