raspberry pi foundation releases case fan to prevent overheating

The Raspberry Pi Foundation announced a new product launch today: a compact $5 cooling fan, paired with a miniature heatsink, specifically designed for the Raspberry Pi 4. This accessory is designed to fit neatly within the official case, positioned beneath the upper shell. The addition of this component aims to safeguard the Raspberry Pi against overheating issues.
For those unfamiliar, the Raspberry Pi is a remarkably affordable, single-board computer, equipped with numerous connectors, and comparable in size to a standard deck of playing cards. It’s an excellent tool for introducing children to the world of programming and terminal interaction, and also serves as a versatile computing core for personal projects and various other applications.
The Raspberry Pi 4 represents the latest iteration of the Raspberry Pi in its traditional design. It delivers a substantial boost in performance when compared to its predecessor, the Raspberry Pi 3.
However, soon after its introduction last year, Raspberry Pi users began reporting a tendency for the device to run warm. In certain instances, the heat generated would become significant enough to trigger CPU frequency throttling, reducing performance to prevent damage.
This issue is particularly apparent when utilizing the official case, which can restrict airflow. Over the last year, the Foundation addressed this concern with a software update concentrating on power efficiency.
While this software solution provided improvements in some scenarios, it wasn’t a complete resolution for all use cases. Many users consistently demand substantial computing power from their Raspberry Pi devices for extended durations.
Although several third-party cases incorporating larger heatsinks are available, the Raspberry Pi Foundation previously lacked a dedicated solution to this problem.
The Foundation states that the new, small fan should be sufficient to eliminate CPU throttling. “Air is drawn in through the USB and Ethernet ports, directed across a small finned heatsink connected to the processor, and then expelled through the SD card slot,” explains the Raspberry Pi Foundation.
This fan represents a cost-effective, interim solution. However, it is hoped that the Foundation will place a high priority on improved heat management in future Raspberry Pi models.