About This

Connector: One is USB port, another one is small 3 pin / 4 pin case fan power adapter cable port
Function: This cable is 5V USB port to small 3-pin / 4-pin fan cable with switch, it allows you to power most case fans by using a USB connection, 3pin or 4pin case fan power adapter cable both OK, you can turn on/off any time by switch
Cable length: 30cm,Cable Type: 22AWG.
Fan must have a start voltage at or below 5V (fans with a higher start voltage will NOT work), 12V fans will be operated at a reduced 5V voltage for silent operation
2 Pack USB to 3-Pin / 4-Pin PWM 5V USB Sleeved Fan Power Adapter Cable with Switch, USB to 3 Pin / 4 Pin Case Fan Adapter Connector Cable with ON OFF Switch