Overview: This is a ultra-quiet cooling fan for NVIDIA Jetson Nano Developer Kit; it with a 2.54 DuPont connector which is easy to insert. Note: This cooling fan does not support PWM and speed feedback; the fan will turn after power-on; This cooling fan supports our exclusive metal casing. Please refer to: NVIDIA Jetson Nano Matching Case Parameters: Dimensions: 40x40x7mm Connector: 2.54 dupont connector-2P Rated Voltage: DC:5V Rated Current: 0.05A Cable Lenght: 6.5cm Weight: 13g/pcs FAQ: Q: How to install this fan? A: Fix this fan on the motherboard to dissipate heat quickly. Package includes: 3 x Cooling fan (with matching mounting screws) For reference only: (NVIDIA Jetson Nano Developer Kit does not includes)