- Enables easy 4-pin PWM temperature controlled fan connections using a single motherboard 4-pin header, making the most of limited motherboard headers. - Supports up to three 4-pin fans using a standard 4-pin power cable from a power supply or a fan controller, simplifying power routing. - Black sleeved design for cleaner wiring inside the chassis and improved overall aesthetics. - The extension cable is sleeved and heat shrunk onto the connector for durable, tidy installation. - Compatibility and usage: designed for 4-pin PWM fans and standard motherboard headers; suitable for builds that need centralized fan control without using multiple motherboard headers. - Practical uses: 1) Small form factor or compact builds (mini-ITX, ITX desksides) with few CPU/chassis fan headers. 2) Gaming PCs requiring multiple fans for enhanced cooling while keeping cable management neat. 3) Workstations or multi-fan setups where centralized PWM control is desired without cluttering the motherboard with several power cables. - Performance and reliability: provides organized, low-profile wiring with PWM control to maintain desired temperatures efficiently, while maintaining a clean case interior.