The active cooler combines a large metal heatsink with a high-quality variable-speed blower fan, powered and controlled via the fan connector on the for 5, attached to the board via sprung pins into the dedicated pair of mounting holes. The for active cooler provides an alternative cooling solution for 5 under sustained , If you want to use for without a case to withstand continuous work without throttling, you can choose to install an active cooling cooler. As the heat from the Pi 5 CPU spreads across the heatsink body and fins, the blower fan pushes cool air over them to keep your for 5 running at optimal thermal levels.It pushes air to cool the fin-type aluminum heat sink. Variable speed fan (software/temperature controlled) Compatible with for 5 Colour:Black Material:aluminum alloy Package Contents: 1 * heat sink 1 * fan 1 * matching parts 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.