1. Extend the 5 4-pin fan interface to solve the lack of motherboard interface and centralize the processing of fan cables. 2. The PWM header is connected to the motherboard CPU fan header, and the red is a dedicated header for CPU fans. The black header is the PWM conventional fan header. 3. Double-sided tape on the back, can be fixed at . 4. In order to prevent the exposed needle from touching the chassis iron plate when powered on, causing a short circuit and burning, be sure to plug in the fan and fix the hub when the power is turned off, then turn on the power, and do not operate with power on.<br><br>Color: Black Material: PCB+components<br><br>Package Contents: 1 x Fan Hub 1 x Cable<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.