If you need a little more reach for a 4-pin power connector, this cord will likely help. I encountered this need with Dell Precision when adding a USB 3.0 card to the system. The problem I usually have with this type of cable is the female end where the connector sometimes breaks because the metal connectors are too far apart. much for a reliable connection. Easy enough to plug the gap with a small screwdriver, but that's not necessary with this extension cord.