Feature: 1. Multiple Fan Support: This 12V 4 pin PC chassis fan hub allows for the working of up to five 3 pin, 4 pin PWM cooling fans simultaneously. It resolves the issue of insufficient fan ports on the motherboard and uses a 4 pin power interface. 2. 5 Fan Port: The red port is dedicated for the CPU fan and supports fan speed adjustment driven by temperature control. The remaining four black ports support regular PWM fans, be mindful not to interchange them. 3. Compatibility: Support for both 3Pin and 4Pin PWM cooling fans. While the 5 way 12V PWM interfaces support simultaneous speed adjustment for 4 pin fans, speed measurement is only supported when connected to the PWM interface. 3 pin fans do not have PWM function, its speed can't be adjusted. 4. Compact and Secure Installation: The compact fan hub comes with a double sided tape to securely fasten it onto the chassis. Its convenient size lets it easily fit inside your computer case, making the interiors look neat and tidy. 5. Space Saving: The small and compact design of the fan hub saves you space, making cable management easier and keeping your PC chassis organized. This contributes greatly towards maintaining a cleaner aesthetic within your system's build. Specification: Item Type: PC Chassis Fan Hub Material: PCB+ABS Size: Approx. 7x2.5x1cm / 2.76x0.98x0.39in Interface: Computer Mainboard 4Pin Interface Fan PWM Ports: 5. Package List: 2 x PC Chassis Fan Hub 2 x Connection Cable