The heatsink suitable for Nano, with an embedded adjustable-speed cooling fan, bracket springs, and height-limiting screws. Compatible with for NANO MINI host, with bracket springs and height-limiting screws, and reserved thermal grease. [Note]:Do not include the for Nano Module. Please Buy alone . Supported Devices:For Nano Module Power:DC 5V Power Input Structure:Embedded fan, aluminum alloy heat sink Electrical Parameters:0.65W (5V/0.13A) Cable Length:373mm Fan:PWM adjustable-speed fan, 550010%RPM Colour:Black Material:Aluminum alloy Package Contents: 1 * NANO-FAN-PWM 1 * Bracket Springs 4 * Height-Limiting Screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.