The Noctua NF-A4x10 24V PWM is a premium quality 40x10mm case fan designed for demanding industrial and professional applications. Featuring Noctua?s renowned SSO2 bearing, advanced aerodynamic design measures such as Flow Acceleration Channels, and a custom-engineered PWM IC for fully automatic speed control via standard 4-pin connectors, this fan delivers outstanding reliability and quiet operation even at high speeds. With its robust construction and wide input voltage range (9-30V), the NF-A4x10 24V PWM is ideal for use in network equipment, server racks, medical devices, or any application requiring compact yet powerful cooling solutions. The included OmniJoin adaptor set ensures compatibility with proprietary fan headers. As an Austrian company recognized worldwide for their commitment to innovation and quality in PC cooling components, Noctua also places strong emphasis on sustainability?using recyclable packaging materials and ensuring long product lifespans to reduce electronic waste. By choosing this product, customers not only benefit from top-tier performance but also contribute positively towards environmental responsibility.