Description: 【Compatibility】This 12V fans hub expansion card is matchable with all 12V CPU or system fans with 4-pin or 3-pin connectors, making it a versatile addition to your computer setup. 【Easy Installation】The Fan Splitter Hub comes with double-sided adhesive tape for easy attachment to your computer case. Alternatively, you can also use screws to install this fan splitter hub securely. 【Expansion Capability】With the ability to expand up to eight fan interfaces, this Fan Adapter effectively addresses the issue of insufficient power supply interfaces for cooling fans. 【Power Supply】It directly draws power from the computer's power supply and is suitable for 12V 3PIN and 4PIN fans. It features /large 4P dual power interface inputs for added convenience. 【Material & Design】Made from durable pp material, this Chassis Cooler boasts a high-performance circuit board that offers low resistance and does not affect fan performance. Specification: Material: PP Size Chart: 6.8cmx4.8cm/2.68inchx1.89inch Package Includes: 1 fans hub  Note: Please allow slightly errors due to manual measurement and different monitors.