Pass-through means that it doesn’t take up a wall outlet. You plug in the adapter and something else can plug into the adapter for power. Non pass-through means you plug in the adapter, and the adapter takes up an outlet. If you’re short on electrical outlets, the pass-through adapters are nice.Click to see full answer. Similarly, what is a pass through Powerline adapter?A powerline adapter is an alternative to running in-wall Ethernet cables or relying on possible unstable WiFi. A powerline adapter has the ability to send your music, photo, video, and computer data over your household’s existing electrical wiring just like it would over Ethernet cables.Also Know, what are the three holes in an outlet? An outlet has three holes. The first hole, or left hole, is called “neutral”. The second hole, or right hole, is called “hot”. The third hole is the ground hole. In this manner, what is the difference between an outlet and a receptacle? Another name for a receptacle is an electrical outlet. Electrical outlets or receptacles are often called plugs or plug-ins, but a plug is the proper term for the male cord end (that plugs into an outlet or a receptacle). Receptacle Outlet. An outlet where one or more receptacles are installed.What is considered an electrical outlet?An electrical outlet or receptacle is a socket that connects an electrical device to an electricity supply. In buildings, electrical outlets are usually installed in the wall, although they can also be installed in the floor.