Aluminum Heat Sink 150mmx93mmx15mm/ 5.9x3.66x0.59 inch High Power Large Heatsink Module Cooler Fin for PCB Board LED Motherboard Cooling GPU Backplate Radiator Routers RTX 3090 3080 Black

I bought this heat sink as a heat sink for a MeLe Quieter 3Q fanless mini-PC. I love the little PC and I trust MeLe will keep up the good work. It is reviewed elsewhere. However, I thought it prudent to add a loose-lying heatsink on top of the "cigarette box" -sized PC, because the room it is used in regularly goes into the 28-to-30C temperature range, despite this being in Vancouver, BC, Canada.I make sure the PC itself is placed on the (cold) metal base of the double-monitor stand and the heat sink lives on top of the PC. So the bottom of the PC is cooled by conduction and the top is cooled by heat conduction to the heat sink and heat radiation from the heat sink.It seems to work. We've never seen any indication of "throttling" of the PC by overheating. then again, it may well have happened in such fashion that we did not notice. Either way, we're happy with the solution. And, no, no thermal " grease or cement" has been used. It functions purely by gravity-contact with the PC.

Worked great for cooling external USB 3.x hard drives during large multi-hour, multi TeraByte, data transfers. When backing up many TeraBytes, it can take half a day or more per drive - sometimes as much as 24 hours. This is because without cooling, many/most drives back off on their data rates as the internal temperature goes up: self preservation.With no cooling at all they were getting very warm and the transfer rates would go down from over 100 MBytes/sec to less than 10 MBytes/sec when the drives got hot.We sandwiched the drives (variously 4 TB and 5 TB) between pairs of these heatsinks back to back using large plastic spring clips. Even just on their edge & convection cooling it worked well. With a small fan they barely get warm. Sustained high data transfer rates were achieved with LaCie (the most temperature sensitive), Seagate, and Western Digital.

Very good products

My GTX 980Ti was overheating causing my games to crash... I'm running it at it's limit doing 1440p gaming. I realized the back-plate of the GFX card was hot enough to fry an egg. So I found this heatsink coupled with ARCTIC TP-3 thermal pads and now the game doesn't crash and the card runs 3 degrees cooler.A great addition to my system... I am now contemplating placing a 50cm cross-flow fan on the card.... however it gets a direct feed from my intake fans in my Corsair 4000D Airflow

Mainly for junction memory heating concerns, altho it reduced the gpu overall heat by a few Celsius on my RTX 3090 Tuf. I used thermal paste and a fan sitting and blowing directly on top of it. With that setup, it reduced my junction memory temp by 14c and gpu temp by 4c. Also, this gpu sat right on top of another RTX 3090 Tuf, and it managed to bring down the vram temp to the same if not cooler than the bottom gpu. Cool little heat sink!Some people are saying it isnt flat, but test it on a flat surface first. I noticed that the metal backplate of my gpu isn't truly flat. But the heatsink I got was definitely flat. It did come with slight cosmetic imperfection, but it wasn't a huge deal tbh. You won't notice it if you orient it away from your sight.