I recently built a compact PC and chose this CPU cooler for it. I'm extremely satisfied with its performance—it works exceptionally well and is impressively quiet. Highly recommend it for anyone looking to keep their system cool without the noise.

Keeps the 5600G of my HTPC 7 decrees celsius colder than the stock cooler and is a lot quieter.

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In a build including ASUS PRIME B760M-A, 15-14500, Sams 990PRO M2 1Tb, GSkil Ripjaws S5 2 X 32G... plus (older sata 850EVO + 860EVO), desktop case (4.5" tall) ... LMDE 6I like it's not hanging over the standard fan footprint, little bit of a puzzle but great instructions (if you can do Ikea assembly then you're already overqualified for this.).No case fans ... runs 5 deg cooler than (same case) an i5-8400 rig that was using the smaller L9i-17xx.Runs quiet - didn't use the noise suppression device (to me looks like all it does is reduces the power to the fan - pretty stupid.)"low" profile? OK absolutely no problem getting it in my case but it's about same size as the stock Intel - It's not "low" better classification "mid".(Yeah I know it's 'low' compared to the ugly mega brick coolers that overclock weenies run, but really who still does that these days? Nobody needs it; 'gamer' kiddies that say they can tell the difference are in la-la land. (effectively they have to record their game then slow down the recorded replay to find effects - grow up!)

This is my first Noctua product. I'd read a lot of good things and I will definitely buy more after having this CPU cooler in my PC for the last couple of months. It takes up no room on the motherboard or in your case, is made from quality materials. It's very quiet and keeps my CPU at a stable temp while under load. I've only used it with the Low Noise Adapter so far but the temps seem to be fine (monitoring with CPU ID). I'll take the LNA out at some stage soon to see if there's much difference in noise and lower temps.If you over clock hard on your CPU and have it under heavy load constantly, this might not be the best cooling unit for you. I have an Intel Core i7-7700k and it seems to go fine with that but it's not over clocked. It keeps the CPU under 53c while gaming (with the LNA connected).The cooler was a little fiddly to install but definitely not the worst. You can do it with the tool, with the fan on, you just need to be a bit patient. The thermal paste is excellent and was easy to apply (is one of the top rated thermal pastes).I can't pick any faults with this cooler after a couple of months of use.All up, very happy with this purchase and would definitely recommend this CPU cooler.

Everything is missing.. the toolkit was missing.. the screws were missing.. the cooler was used and had a thermal compound on it.. the thermal compound itself was missing ..n the main Mount was missing.. it shipped from Calcutta XRIG sales ..

This cooler exceeds all my expectations. Install was a breeze, possibly the easiest cpu cooler install I've ever done. Dropped temps by up to 50% at idle and under load. So quiet I can't even hear it. I have 3x120mm and 3x80mm fans in my mid tower InWin case and I never realized it was the CPU cooler making the most noise. Amazing upgrade. On first impressions, I'm very glad I decided to try a Noctua product. With this little beast installed, I'm running 20-25c at idle and running TW WarHammer at ultra settings on a 980GTX 4GB in a massive campaign I'm barely tipping 50c under load. That's still 25% or more less temp than the stock fan did brand new with Arctic's best avail thermal paste. ( I used the included NT-H1 paste since my order of the MX-4 paste was delayed in being shipped out. I'll send it back I guess. I figured if Noctua included this paste, they trust it. Was a full 4g tube.)I had a 6 year old stock intel cooler for my i5-2500k I OC'd about `15% with no issues of any kind for all those years but lately was not performing well at all keeping my CPU around 40-50c at idle and up to 81c under load. The fan was no longer revving up with the Asus AI Suite controls or manual control (ROG Gene-IV Maximus). Recently it became a bit sluggish, and more recently it began to set off temp alerts.Was going to try a Corsair Hydro H60 but as much as I had to bend the hoses to fit into location in my case I felt the connections were going to be stressed so decided against it and issued an RMA. With the lack of actual pressure inside the cooling system I'm not sure why high pressure hoses are used...they are quite stiff. Should be able to accomplish the same thing with a high strength, thin walled, and highly-flexible tubing for roughly the same price.Definitely going to Install one of Noctuas supersize coolers in my upcoming i7-7700k build instead of going liquid. More peace of mind and obviously outstanding cooling technology. Sure wish the fans had color options though. I don't look inside a lot but these colors certainly don't fit anything I've ever put into a PC case in almost 30 years of building PC's. *yeah, all the way back to when RAM was measured in MB! :o I'd paint them but that's not a long-term solution. The slightest amount of weight off center throws the fans a bit out of balance and shortens their life a great deal. I'll let it work as intended and sit comfy with that amazing 6 year warranty.

This CPU cooler is probably the best choice on the market for anyone trying to cool a performance processor in a Mini ITX case like my Cooler Master Elite 130. Initially, I was scared away from this by the height of this cooler because my case specs said I only had 65 mm of clearance, but the true clearance is probably around 75 mm so this cooler fits just right under the PSU. Keep in mind, these will cool the S or T series Intel chips phenomenally, but for K processors like my i5-4690k, you are going to be seeing warmer temps, even though they are reasonable if you really can't fit a bigger tower cooler.Performance (4/5):I idle between 35-40 degrees C with an i5-4690k OC'ed @ 4.0 GHz. Load on The Witcher 3 with my GTX 970 adding some heat to the case is I switched from the stock cooler to the NH-L9i and then to this, and I am generally seeing around 10 degrees cooler temps with this versus those two, and I had the thicker 25 mm fan for the NH-L9i as well. I have no concerns with the temperatures I am seeing, though I would not consider upping my overclock beyond 4.2 GHz, and probably will just let it sit at 4 GHz.Installation (5/5):You will need access to the back of the motherboard for initial installation, but after that you can remove the heatsink and reseat it just from the front. The mount is solidly built and does a great job of simplifying the process of securing the heatsink once you've applied your thermal paste. On other coolers, you have to try hard to center over the processor and tighten 4 points at once. This cooler only requires two connections to the mounting bracket, is easy to align, and is very solid once it is secured. The thermal paste is top notch. Remember to aim for lentil size in the middle! The included Low Noise Adapter and screwdriver round out the package.There are mounts for LGA 2011, LGA 115x, and AMD sockets included. It truly is a universal cooler for modern processors. The included fan locks to the cooler securely, and the fan cable is sturdy and was definitely long enough. This cooler is even lighter than the NH-L9i so it shouldn't flex the motherboard much if at all. Overall, this was a very quick and sturdy installation.Noise (4/5):Definitely noticeable at 100%, but not obtrusive. At 70% or so, the fan is basically silent in the case along with the case fans. At idle, you'll get about the same acoustic performance as the stock cooler. At load, the Noctua is quieter than stock, but a slight acoustic tone is introduced by the 14 mm fan. This is acceptable in my opinion, but people that require absolute silence may want to limit the fan curve or install the Low Noise Adapter at the cost of extra heat. I have not noticed any extra vibration or wind noises in the case. In conclusion, the noise goes from nonexistent to acceptable, which is a triumph for a part that is optimized for size and cooling at the same time as noise.Build Quality (5/5):My shipping box came with a corner dented in. Thanks UPS. Luckily, the Noctua packaging was well designed and the cooler was in good condition, no bent fins or anything. The fan is very well made. The heatsink felt a bit fragile but normal handling definitely won't bend fins or make you worry about breaking it. Just don't drop the heatsink and it will be just fine. The fins are much thinner than the NH-L9i or the Intel stock cooler. I'm guessing this helps performance somehow or reduces the necessary static pressure from the fan.The contact plate was covered with a plastic shield but I had some dust under the shield. A quick wipe with 99% iso was all that was needed to get it completely clear of dust. I would definitely not trust the shield to replace a pre-installation cleaning. Instructions were clear and to the point. There is enough thermal paste for probably 4 overeager applications and a fifth, lentil-sized drop. If you look up reviews of this thermal paste, it is one of the best out there and you get enough to mess up a few times and still have some left over. Overall, this cooler is a premium product through and through.Final Thoughts:If you are considering this for anything but a space-restricted setup, you should look elsewhere. Noctua's other coolers and even the cheap Cooler Master 212 will generally perform better. This product is specifically for small cases with limited cooler clearance and people that prioritize noise and performance over price. For what it is, it's a godsend. Now you can use your hot Haswell chips in a Mini-ITX case with even a mild overclock! I have tried other coolers, including the Intel stock cooler and the Noctua NH-L9i with a fan upgrade, and this one is hands down the best performing. That said, the stock cooler will work for most people, so the value proposition of this cooler only makes sense if you need cooler temps or lower noise at minimal height and don't mind the premium pricing. You get what you pay for with this product, and with the 6 year warranty and superb build quality along with promises to send you brackets for new sockets, this cooler may just last you through two builds.I'm giving this 5 stars even though my average is 4.5 because for those who specifically need to cool their performance CPUs in a small case, this is the perfect product. For others with more clearance, I would probably give this a 4 star and urge you to save money or get better performance with the bigger Noctua coolers or the CM Hyper-212.