I found the pictured power strip in the cabinet under my kitchen sink. It was mounted to the wall and has an attached wire connected to a metal disk that was mounted to the the cabinet, just under the countertop. The only thing plugged into the power strip was some non-functional under-cabinet lighting whose power cord had been routed through the wall. On the underside of the power strip is a label that says "38AF APPLIANCE CONTROL".
I removed the dead lighting and also pulled out this power strip, along with the attached wire and metal disk. I don't think any of this stuff was serving an important function, but I don't like removing things when I don't even know what they are. Can anyone tell me what this thing is?