For those who want to use their Raspberry Pi 5 without a casing when it is operating at a high sustained load, there is an alternate cooling option available.
The Raspberry Pi Active Cooler provides an alternative cooling solution for users who wish to use their Raspberry Pi 5 under sustained heavy load without a case. It combines a large metal heatsink with a variable-speed blower, again powered and controlled via the fan connector, and attaches to the Raspberry Pi 5 PCB via sprung pins into a pair of mounting holes. Using the same fan connector for power and control, it integrates a sizable metal heatsink and a variable-speed blower. It fastens to the Raspberry Pi 5 PCB using spring pins into two mounting holes. A temperature-controlled fan that can produce airflow of up to 1.4 CFM. Airflow across the memory, processor, and power management integrated circuit.