When I tried to plug in a cord into one of the 120V receptacles I couldn't push it in. When I finally wiggled and pushed hard enough the cord ended up loose in the receptacle. I couldn't see any child safety covers or anything blocking the receptacle. I opened the back of the strip and found the brass parts had bent and moved away from the front of the strip. There was no way it would make contact again. Each receptacle ended up being the same. The contacts inside feel like they are welded shut and won't spread apart to accept the plug. I have a couple of other Cyberpower strips and they were initially tight to plug in but nothing like this.