From the manufacturer
Redgear Turbo f-1 Case Cooling Fan
Redgear TURBO F-1, a new and first product of the Redgear for your cabinet needs. Provides a specific air cooling solution for your cabinet. Designed for budget-friendly gamers you can feel the flow with full Auto-RGB color fun, and perfect match your PC’s theme. Turbo f-1 has a brushless DC motor for exclusive noise reduction technologies and a perfect blend of fan blade design that put together work in harmony to cool your entire case and make sure the cabinet components are quiet.