Berg connector
Sometimes labeled on the cable as P7, the Berg connector is
a power connection developed by Berg Electronics found with computer power supplies that connect to floppy disk drives and other parts of the computer such as the front panel lights, reset, or turbo button.
In the picture to the right, is an example of the 4-pin Berg connector used to power floppy disk drives in computers.
Also see: Floppy definitions, Molex, Motherboard definitions, Power definitions