1to4 PWM Fan Splitter Hub with Black Sleeves Why you need it Control up to four case or radiator fans from a single motherboard PWM fan header, reducing cable clutter and simplifying fan management. Keeps PWM speed control centralized so all connected fans respond to the same temperaturebased or BIOS/firmware fan curve. Black sleeved cables provide a clean, professional appearance and help protect wiring in tight builds. Key features and function Expands a single motherboard PWM fan header to support up to four fans. Supports PWM speed control so fan RPMs follow your motherboard or controller settings. Simple plugandplay design: connect the hub to your motherboard PWM header and attach up to four 3 or 4pin computer fans (compatible with standard PWM fan connectors). Black sleeved cabling for improved durability and a neat interior finish. Compatibility and practical details Works with systems that provide a PWM fan header on the motherboard or external PWM controller. Ideal for coordinating multiple fans on the same circuit so they share a single control signal. Compact and lightweight hub that fits into typical desktop PC cases without obstructing components. Performance and reliability Maintains PWM signal distribution so connected fans follow the same speed profile. Sleeved cables protect conductors and reduce wear from routing and repositioning. Typical use scenarios Singleheader builds: You have only one PWM fan header on your motherboard but need to run four fans on the front or of the case. Multifan radiators: Connect multiple radiator fans so they spin in unison and respond to CPU or GPU temperaturebased fan curves. Small workstations or home servers: Manage intake and exhaust fans from one header to keep noise and airflow balanced without extra fan controllers. What it solves Eliminates the need for multiple motherboard headers or an additional fan controller when you want synchronized fan control. Reduces cable chaos and improves airflow routing while keeping all fans under PWM control. What's included 1 x PWM splitter hub with black sleeved cables, supporting up to four fans from a single PWM fan header. Note: Designed to extend and share a motherboard PWM fan header's control signal to up to four fans while preserving PWM speed control.