there are two types of audio cables that i know of for connecting a CD/DVD drive to a sound card. One has 2 longer black connectors, each with 4 pins, and the other is the one you describe, the one with the longer black connector and the short white connector with 4 pins. Look on the motherboard for the audio connector...usually there's a place for either the long black connector or the short white connector. Otherwise, you'll have to get an audio cable with the two black connectors.