8 Channels Fan Hub 4 Knob PCI Bracket Cooling Fan Speed Controller for CPU Cooler PC Case Fan _x005f_x000D_ Feature: _x005f_x000D_ Made of high-quality materials, durable, strong and stable, for our use. _x005f_x000D_ Professional high-speed regulating circuit, high performance, support SATA/3Pin interface. _x005f_x000D_ This cooling fan hub is equipped with independent speed controller knobs for you to adjust. _x005f_x000D_ _x005f_x000D_ Specification: _x005f_x000D_ Power supply voltage: DC 12V _x005f_x000D_ Interface type: SATA/3Pin _x005f_x000D_ Material: metal _x005f_x000D_ Colour: Black _x005f_x000D_ Size: 80*40*30mm/3.15*1.57*1.18" _x005f_x000D_ _x005f_x000D_ Note: _x005f_x000D_ 1. There may be slight size deviations due to manual measurement, different measuring methods and tools. _x005f_x000D_ 2. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor. _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1 X PC Fan Speed Controller Made of high-quality materials, durable, strong and stable, for our use. Professional high-speed regulating circuit, high performance, support SATA/3Pin interface. This cooling fan hub is equipped with independent speed controller knobs for you to adjust.