Specifications: One end is 4Pin holder, the other end of the signal line is the 4Pin interface of the computer motherboard, and the power supply line is the 4Pin D port. Five fans are powered by big 4Pin interface at the same time. It can effectively reduce the load of the motherboard and increase the service life. Supporting the PWM speed regulation function. Item Name: CPU Cooling Fan Hub Material: PVC Insulation Conductor Material: Tin-plated Copper Conductor Type: 17x0.12TS Wire Outer Diameter: OD1.4mmx4 Rated Temperature: 80 Degree Celsius Features: 1 to 5, Easy Installation, Durable, PC Accessories Size: 5.8cm x 1.8cm/2.28" x 0.71" (Approx.) Cable Length: 40cm/15.75" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x CPU Cooling Fan Hub