This kit is designed for Raspberry Pi single board computers and TerraPi cases.  The 40mm fan increases cooling while operating at lower RPM and sound levels.

Kit includes:

• 40 x 40 x 10 mm 5v DC fan with connector for Raspberry Pi GPIO
• 4 m3 hex nuts (black), which this fan is designed to accommodate
• 4 m3 x 12mm screws (black)

Fan is a 7-blade axial fan with sleeve bearing, providing 5cfm of cooling while producing approximately 29dba.

This fan is also ideal for printers and 3D printers.