Thermalright AXP90 X47 Full Low Profile CPU Cooler, 47mm Height, with TL-9015R Slim PWM CPU Fan,Pure Copper Version, Computer ITX Heatsink Cooler, for AMD:AM4 AM5/Intel 1150/1151/1200/1700

Performs incredibly well for the price. I didn't have a lot of expectations considering the price, and considering I came from a Noctua NH L12S, but it cooled my 5800x3d well enough in my FormD T1 case. Make sure to choose the Full Copper version though.

The copper heat sink is about as good as it gets, but you are going to want to slap a better fan on it. I replaced the stock fan with an equivalent Noctua, which ran cooler and quieter.

Bought this for cooling an old Intel 4470K in a 4U rack mounted case.Fits just fine, but the mounting screws don't have any sort of springs in them, so you can easily overtighten, or (just as bad) tighten unevenly on the processor. Both mean you could easily crack the processor, or damage the motherboard.Also tried on LGA1200 and LGA1700 processors, and sadly, just the same.If you want something that does the job, look at a Coolerguys unit instead.

I’ve done a great deal of research for CPU coolers strictly under 50mm for a few years and this is the best one I’ve ever seen. And Im talking about the Full Copper version specifically.For context I’ve previously I’ve owned an Alpenfohn Black Ridge and while cooling was great and was a top performer for its time, its fan was too loud being too close to the heatsink and causing turbulence. Putting the fan on top of the Ridge heatsink would be much quieter but would just increase the total height to 62mm+ which is definitely not ideal for me. Not only that, the heatsink is too massive so cool air doesn’t even pass through all its fins when using a 92mm fan. And because it’s so big I dont even have access to M.2 drives and Ram. Anyway I had too many problems with this that I realize it’s not good enough to be one of the most effective coolers.Now with the Thermalright AXP90 X47 Full Copper, it performs slightly better (making it the best performing 47mm cooler from all the tests I’ve seen despite it’s much smaller heatsink), is much quieter, easy to assemble, and is so much smaller. My cpu stays at around 70-80C at max load, no turbulence because of the fan on top of the heatsink rather than under, and I can easily get access to my M.2 drive and ram sticks. Also the horizontal heatsink fins allow for hot air to make its way to exhaust through the front and back of my vertical case with almost no obstruction, rather than the bottom and top. This may be one of the reason this cpu cooler is more effective than the much larger Black Ridge.One thing I don’t like is the color of the fan it comes with, so I replaced it with a ID-COOLING TF-9215 ARGB Case Fan 15mm (which is about as quiet and effective as a Noctua NF-A9 if not better). Keep in mind, I’ve heard of reports that the original ugly fan may actually be the best fan for this specific heatsink design, but I haven’t tested this myself.

Needed it desperately so did not return, but this is horrid receiving a 2nd hand product, obvious solder on the pipes there...