I was installing new hardware in a friend’s computer today, and I discovered I needed an internal power supply cable. This is a four-wire cable with white nylon connectors at each end. I figured I could just run out to good old Radio Shack to get one.
When I got there, however, the sales clerk didn’t have a clue what I was talking about. I looked around a bit, but they didn’t even carry parts like that.
The PC industry has been using these for at least 20 years now. Here’s a picture of one at MicroCenter. Radio Shack is a shadow of it’s former self.