I am replacing some receptacles in my Master Bedroom. I have replaced 7 so far and they all have the same setup: 4 wires and 1 ground. They are straight forward to replace.
When I opened the last receptacle, I found out that it had 9 wires: 8 wires and 1 ground (see attached picture)I couldn't understand how this work and how I could replace it and closed it back. That receptacle is not connected to any switch.
Why do I have 9 wires for that receptacle? How can I replace it?