Rosewill 12-Inch PWM Splitter (RCW-FPS-401) Length: 12" 4 pin Molex x 1 (Connect to PSU) 4 pin Connector for RPM feedback x 1 (Connect to motherboard) Length: 12 Inch 4 pin Molex x 1 (Connect to PSU) 4 pin Connector for RPM feedback x 1 (Connect to motherboard)