Upgrade your mining rig with these high-performance 120 MM fans designed for optimal cooling of Antminer S21, S21PRO, KS5, L9, and IceRiver KS5L, KS5M models. Featuring a robust 7000 RPM speed, these replacement fans efficiently dissipate heat, ensuring stable and reliable operation of your mining hardware. With a durable construction, these fans offer long-lasting performance, keeping your mining setup running smoothly for extended periods. Maximize your mining productivity and protect your investment with these essential cooling components.