Before i added heatsinks to the nvme drives in my F4-423 Nas, they would run crazy hot.
Challenge is the limited amount of space, but i found that these fit - glotrends M.2 Heatsink with M.2 Thermal Pad for 2280 M.2 PCIe NVMe SSD or M.2 SATA SSD, PC and PS5 Installation
They can found on Amazon and many other places and is only 10€.
Just wanted to share the info as i spent a long time trying to figure out what would fit.
Now my temps are low again

