Description: COMPUTER, FAN, HEATER, POLARIZED, PUMP, WITH LOCKING RING TYPE VALOX MATERIAL 0.73 INCH MIN. CABLE OUTER DIAMETER 1.14 INCH MAX. CABLE OUTER DIAMETER 4 WIRE(S) CSA APPROVAL 500 V VOLTAGE ...

Often refers to the 4-pin connectors used to attach DC power to the drives inside a PC cabinet. Molex is a large manufacturer of electronics plugs and sockets that dates back to the 1940s.