ACFAN00185A - High Performance 40 mm Server Fan Continuous Operation and a Wide Range of Speed Settings for Extreme Performance Engineered for reliable performance, the ACFAN00185A 40 mm Server Fan from Array MG is designed to be used in server cases and other enclosures. This top-of-the-line fan features dual ball bearings to ensure long-term durability and is also resistant to external influences such as heat and dust. Full Control with an Impressive Range of Speeds The ACFAN00185A allows users to control fan speeds within an impressive 5000 to 6000 rpm range via PWM and voltage. This makes it easy to balance cooling power while keeping noise levels to a minimum. High Flow Rate and Static Pressure This model is known for its impressive airflow of 12.06 m3 per hour and static pressure of 4.2 mm/H2O, making it ideal for all types of applications. The fan can be used as both a radiator and case fan, making it an optimal choice for 1U server cases. Flexible Connection Options The ACFAN00185A has a versatile 40 cm cable with a 4-pin fan connector, making it easy to install in a variety of applications. This fan is also compatible with 2-pin and 3-pin headers, giving users a wide range of connection options. Wide Range of Applications The ACFAN00185A is a great choice as a replacement fan for routers, switches and NAS, and is also suitable for other electronic devices such as DVRs, mini PCs, HTPCs, hard drive enclosures and 3D printers.