Item Type:Cooling Fan Speed Controller Material:Plastic+Metal Supply Voltage: 0-12V Connectable Fans: 8 Fan Interface: 4PIN (3PIN Can be connected) Power: 72W Adjustment Method: 1 Manual Adjustment Knob Power Supply Interface: SATA interface Installation Position: PCI Position of PC Chassis Package: 1 x Cooling Fan Speed Controller Made of high-quality material, durable, firm and stable Professional high speed regulating circuit, high performance, support for SATA interface Universal: Widely used for PC computer water cooling system, easy to install.