Noctua NA FG1 4 Sx5, Fan Grills for 40mm Fans (Set of 5, Black)

Premium-grade matte-black fan guards for 4cm fans, including screws and tool-free push-pin mounting system Reliable protection, excellent acoustics and high airflow thanks to round struts and offset design Easy-to-install push-pin mounting introduces an additional 5mm offset for reduced influx turbulence, better performance and low-noise operation Set of 5 (Sx5) includes 5 fan grills, 20 fan screws and 20 tool-free push-pin mounts Ideal for protecting fans in PCs and various other applications such as 3D printers or home ventilation (no risk of putting fingers inside the fan, cables hanging into the fan, etc.).