ITEM NAME:Copper USB To 4-Pin 2 Way Swith Connector Adapter Cable For 5V Computer PC Fa Bj.Conductor material: pure copper. USB 2.0 A male to Fan 4-Pin adapter cable for 5V. Conductor specifications: 17 0.14TS. This cable provide one USB male connector and a fan 4-Pin connector. Connect 4pin fan to USB.