In my home (built around 1970), I found a bizarre outlet when replacing the dated old ones. The front is your standard duplex, but on the back there are holes for 8 wires (4 hot, 4 neutral) plus the ground. Into the box, there are 4 pairs. Is there a name for this type of outlet, so I can try to find a replacement? I don't want to try to jam them all together in a standard outlet and create a hazard!
The original outlet says max 15 amps, 125v. Please see pictures below.
EDIT: Replaced front pic with sharper image, added pics of hot and neutral sides.