The 4.7in (120mm) axial rack muffin fan for server cabinets can be installed in wall mountable server rack cabinets (RK12WALHM, RK1219WALL and RK1219WALH), as well as many full sized racks from StarTech.com and other manufacturers. Low Noise Ventilation This powerful, yet quiet ball bearing muffin fan will help increase airflow and reduce heat build-up within the cabinet. Capable of moving 107 CFM of air through the rack, this AC powered fan kit is sure to prolong the life of your rackmount equipment. Built for Most Environments Designed with a solid metal frame, this small and sturdy computer exhaust fan was built to withstand harsh environments, like factory settings. It has an operating temperature of 14°F to 158°F so it works for a variety of applications. This versatile axial fan can also be used in home or office settings; for cabinet cooling, PC cases or to cool stored server and AV equipment. Complete Powered Fan Kit Complete with screws, nuts and washers, this 120mm x 38mm fan comes in a convenient kit to ensure you’re ready for installation. The kit also comes with a power cord and has a removable 115V plug for use with direct current. This high performance, low noise cooling fan is backed by a StarTech.com 2-year warranty and free lifetime technical support.