Features: Experience control over cooling systems for Antminer S21 Fan Simulators, essential tool for optimizing PC thermals performances. This fan speed Emulators ensures durability and consistent operations, seamlessly integrating with computers hardware. for aficionados, for anyone lookings to enhances their computers cooling efficiency. Whether you're gaming, overclocking, or running intensive applications, the Fan Simulators provide simulation to maintain temperatures PC . Elevates your computers functionality with Fan Simulators, accessory that promise to keep systems cool under any workload, ensuring performances at all times. Specifications: Materials: Size: 11x6x3cm Package Includes: 1PC Fan Simulators note: Please allow 1-3mm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item.