The Seasonic S400 RGB CPU Air Cooler is a high-performance tower cooling solution designed for gaming PCs and productivity workstations. Featuring a large aluminum heatsink, multiple copper heat pipes, and a 120mm RGB cooling fan, the S400 delivers efficient heat dissipation while maintaining quiet operation. The PWM-controlled fan automatically adjusts speed according to CPU temperature, ensuring optimal cooling performance under varying workloads. With its vibrant RGB lighting and universal compatibility for modern Intel and AMD processors, the S400 offers an excellent balance of performance, aesthetics, and value for desktop PC builders.