A:Answer It sounds like the tab connecting the top and bottom outlet on the HOT side of your original duplex device was removed, and a "switch leg" run to another box with a switch to control one half of the duplex. That is a typical arrangement. However, these USB combo duplex receptacles cannot be split like that due to the nature of the device. There is only one hot terminal and one neutral.
You do have the option of either eliminating the switch or switching the entire device. Switching the entire unit would require attaching the HOT feed to one wire on the switch leg and attaching the return wire on the switch leg to the device. Eliminating the switch would be the most practical if the USB feature is your priority, which I would assume since you bought it; but only if there are no other location options. Otherwise, you should find an alternative location for your new receptacle. Typically, switched receptacles are the only source of controlling lighting (lamps) from the entrance to a room that has no overhead light, which is a code requirement. You may not want to give up the switching capability.
