Designed specifically for Raspberry Pi 4B, 3B+, and 3B, this Argon FAN HAT fits securely on the GPIO header and is engineered to work seamlessly with Argon cases, including full support for the Argon NEO case for Raspberry Pi 4B. Equipped with an intelligent temperature control fan, the HAT automatically adjusts fan speed based on CPU temperature to balance cooling performance and noise. This active cooling solution helps prevent thermal throttling, keeping your Raspberry Pi running at stable, high performance even under heavy workloads such as media playback, gaming, and server applications. The integrated function power button allows convenient and safe power management for your Raspberry Pi. With appropriate software configuration, you can power on, soft-shutdown, or reboot your board directly from the button, avoiding the need to repeatedly plug and unplug the power cable and reducing the risk of SD card corruption. Precise Compatibility It maintains access to all ports and interfaces while providing efficient active cooling. Color: Black Material: plastic Package Contents: 1*Argon FAN HAT 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.