Specifications: This splitter cable can make two computer fans share one interface. The cable supports 2 PWM fans from a single motherboard PWM header. It is compatible with 4pin PMW fan connectors and 3pin fan connectors. Item Name: 4Pin PWM Splitter Cable Material: PVC Wire Model: 1007 24AWG Rated Temperature: 80 Degree Celsius Features: Female to Female, 1 to 2, Easy to Use Outer Diameter: 1.4mm/0.06" (Approx.) Cable Length: 27cm/10.63" (Approx.) Notes: You will find more amazing products if you visit our store. We guarantee the lowest price and the highest quality for all of our products! For fan speed adjustment, the two fans can only maintain the same speed. In order to prevent reading the different speed information of the two fans, there is a 4pin female interface and a 3pin female interface. Due to differences in lighting and screen settings, the color of the project may be slightly different from the picture. Due to different manual measurements,allow for slight size differences. Package Includes: 1 x 4Pin PWM Splitter Cable