Package contents: 6 × PWM Fan Extension Cable Specification: Product Name: PWM Fan Extension Cable Black Connector Type: 4 Pin Material: Nylon Colour: black. Compatible with: 3 pin/4 pin fans Length: 260 mm/10.23 inches Weight: 10 g Function: helps protect your PC from overheating. The cable is a 4-pin female connector to a 4-pin male connector, suitable for CPU and PC case fans. After-sales service: Customer satisfaction is our biggest concern, if you find that our products do not work or the quality is not as good as you think, please contact us without hesitation.