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expiredCrazyHorse posted Jan 24, 2026 10:26 AM

Thermalright Royal Knight 120 SE 6 Heat Pipe Dual Towers 4-Pin CPU Air Cooler

$20

$29

31% off
Amazon
35 Comments
17.9K Views
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Deal Details
THERMALRIGHT.EUR via Amazon has Thermalright Royal Knight 120 SE 6 Heat Pipe Dual Towers 4-Pin 1500 RPM Processor Air Cooler on sale for $19.87. Shipping is free with Prime or on $35+ orders.

Thanks to Community Member CrazyHorse for sharing this deal.

Product Details:
  • Double-tower dual-fan cooler, which adopts an anodic frosted top cover + fully electroplated 6 heat pipes and Seiko micro-carved reflow soldering copper bottom process, combined with a 12cm high-performance blackened fan, which can give full play to the heat dissipation effect of the CPU cooler stably.
  • Leaves space for RAM, no matter how high the RAM is, it doesn't block the light output of the RAM, and there is no need to raise the front fan, thanks to the matching fans, the middle fan of the cooler is a standard 12cm cpu fan, and the front fan is a thinner 12cm fan, the thinner pc fan has a high RPM of 1800RPM, and the high airflow makes it easier to dissipate heat.
  • Dimensions: 122 x 114 x 155mm (4.8 x 4.49 x 6.1")
  • Heat Dissipation Material: Aluminum + Copper, All Aluminum Fins of the Main Tower, which can bring the maximum heat dissipation area, and the S-FDB bearings attached to the dual fans have a long service life to ensure the service life of air cooling and heat dissipation.
  • Dual fans attached to the heat dissipation are TL-C12B V2 and TL-C12015B, with fan parameters of 120 x 120 x 25mm/120 x 120 x 15mm, speed of 1500RPM+10%/1800RPM+10%, air pressure of 1.53/1.24MM H2O, air volume of 66.17/59CFM, operating noise<25.6/26.1DB (A), fan interface: 4PIN PWM, voltage: DC 12V
  • Compatible with:
    • Intel: LGA115X/1200/1700/1851
    • AMD: AM4/AM5
  • Includes corresponding mounting grommets for easy installation, which can be installed according to the instruction manual or the installation video
  • Note: For AMD installation, you need to use the original motherboard backplane for installation

Editor's Notes

Written by Nate650 | Staff
  • About this store:
  • Additional notes:
    • Please see the original post for additional details & give the wiki and additional forum comments a read for helpful discussion.

Original Post

Written by CrazyHorse
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
THERMALRIGHT.EUR via Amazon has Thermalright Royal Knight 120 SE 6 Heat Pipe Dual Towers 4-Pin 1500 RPM Processor Air Cooler on sale for $19.87. Shipping is free with Prime or on $35+ orders.

Thanks to Community Member CrazyHorse for sharing this deal.

Product Details:
  • Double-tower dual-fan cooler, which adopts an anodic frosted top cover + fully electroplated 6 heat pipes and Seiko micro-carved reflow soldering copper bottom process, combined with a 12cm high-performance blackened fan, which can give full play to the heat dissipation effect of the CPU cooler stably.
  • Leaves space for RAM, no matter how high the RAM is, it doesn't block the light output of the RAM, and there is no need to raise the front fan, thanks to the matching fans, the middle fan of the cooler is a standard 12cm cpu fan, and the front fan is a thinner 12cm fan, the thinner pc fan has a high RPM of 1800RPM, and the high airflow makes it easier to dissipate heat.
  • Dimensions: 122 x 114 x 155mm (4.8 x 4.49 x 6.1")
  • Heat Dissipation Material: Aluminum + Copper, All Aluminum Fins of the Main Tower, which can bring the maximum heat dissipation area, and the S-FDB bearings attached to the dual fans have a long service life to ensure the service life of air cooling and heat dissipation.
  • Dual fans attached to the heat dissipation are TL-C12B V2 and TL-C12015B, with fan parameters of 120 x 120 x 25mm/120 x 120 x 15mm, speed of 1500RPM+10%/1800RPM+10%, air pressure of 1.53/1.24MM H2O, air volume of 66.17/59CFM, operating noise<25.6/26.1DB (A), fan interface: 4PIN PWM, voltage: DC 12V
  • Compatible with:
    • Intel: LGA115X/1200/1700/1851
    • AMD: AM4/AM5
  • Includes corresponding mounting grommets for easy installation, which can be installed according to the instruction manual or the installation video
  • Note: For AMD installation, you need to use the original motherboard backplane for installation

Editor's Notes

Written by Nate650 | Staff
  • About this store:
  • Additional notes:
    • Please see the original post for additional details & give the wiki and additional forum comments a read for helpful discussion.

Original Post

Written by CrazyHorse

Community Voting

Deal Score
+67
Good Deal
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Top Comments

az060693
1.5KComments
348Reputation
This is pretty solid for the price if going with a more efficient CPU like a lot of the Ryzen chips that don't necessarily need the cooling power of the Peerless and want to save ~$15 or so (Peerless usually goes on sale for around $35). Can also cool many of the more power hungry chips if not overclocking and don't mind the increase in fan noise (I have an air purifier running at all times that is louder than my PC's fans to put it into perspective).

If you're going for a higher wattage chip or boosting clocks, I'd probably still go for the Peerless, but something like the 9600X should do fine with this (overkill honestly). Looks like it can cool up to 222W effectively, which is low for a dual tower but probably more than enough for a lot of chips: https://www.tomshardware.com/pc-c...-se-review

They really shouldn't have cheaped out so much on the fans but at $20 I can't really complain. At MSRP it sucks though. Just overall an odd double tower cooler that's overkill for lower wattage CPUs where a single tower would work, but then a bit weak for higher wattage ones.
Go to Comment
jiari
660Comments
82Reputation
Peerless assasin has 2 89CFM (2.1 H2O) fans. The royal knight has a 66 (1.53 H2O) and a 59cfm (1.24 H2O) fan. Peerless should move more air.
Go to Comment
Superorb
18.3KComments
2.6KReputation
These $20 6-pipe air coolers can perform as good as 240mm water coolers and at par with some of the 360mm water coolers. And they don't clog up or fail like water coolers. And they're a lot cheaper.
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35 Comments

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Jan 25, 2026 1:25 AM
1.7K Comments
Joined Jun 2010
HansGruberJan 25, 2026 1:25 AM
1.7K Comments
Quote from MaziRoddy999 :
From what I can gather, it appears Thermalright's coolers are the new Cooler Master Hyper 212s just to boil it down for simplicity's sake. Correct me if I'm wrong.
Thermalright invented the modern day air cooler that the Coolermaster 212's and many others are based on. It was the Thermalright Ultra 120 that started it all a few decades ago.
Jan 25, 2026 2:21 AM
185 Comments
Joined Sep 2011
roy454ewbJan 25, 2026 2:21 AM
185 Comments
Considering switching from water-cooled to air...
Jan 25, 2026 2:55 AM
1.4K Comments
Joined Feb 2004
IlovedealsJan 25, 2026 2:55 AM
1.4K Comments
Seems good for a budget dual tower cooler. Probably not a lot worse than pa 120. Something like 7500x3d or 7600x3d would be good fit
Jan 25, 2026 3:06 AM
48 Comments
Joined Aug 2004
monke555Jan 25, 2026 3:06 AM
48 Comments
Quote from roy454ewb :
Considering switching from water-cooled to air...
While I totally understand the aesthetics appeal of water coolers, I personally think that air cooling is superior in almost every other way. There are just too many potential drawbacks with liquid cooling, including risk of leaks (thus potentially damaging your PC), pump failure, pump noise, and extra adjustments needed (i.e. pump speed) which requires tinkering.

Air coolers hardly fail, almost match liquid performance, require very little maintenance and adjustments (just setting fan speed), and if they do fail, you can immediately see the fan not spinning whereas a liquid cooler pump failure may go unnoticed. Replacement is a snap too, takes maybe 5 minutes tops to switch to a new fan. Aesthetics is subjective but I actually kinda like the look of an air cooler tower.

With that said, there are certainly use cases where liquid cooling can be the right choice over an air cooler (ITX build with limited clearance, etc) but 95% of the time I think air cooling wins.
Jan 25, 2026 4:39 AM
18.3K Comments
Joined Sep 2006
SuperorbJan 25, 2026 4:39 AM
18.3K Comments
These $20 6-pipe air coolers can perform as good as 240mm water coolers and at par with some of the 360mm water coolers. And they don't clog up or fail like water coolers. And they're a lot cheaper.
Jan 25, 2026 7:12 AM
336 Comments
Joined May 2025
DogspeonlegsJan 25, 2026 7:12 AM
336 Comments
These work just as good as liquid coolers IF you have great thermal paste and proper airflow. I've built 100's of gaming PCs doing stress test between both styles. Great budget option. Extremely similar to Coolermaster 212's
As for peerless comments, the above is more important and will provide better cooling, than just worrying about the type or brand of cooler you buy(non-liquid cooled). Most people ruin airflow in their cases which causes shorter component lifecycles and overheating.
I've revived many pc's with just a proper dusting, redoing thermals, and fixing airflow.
Jan 25, 2026 4:19 PM
1.3K Comments
Joined Sep 2022
TealIdea227Jan 25, 2026 4:19 PM
1.3K Comments
Quote from HansGruber :
Thermalright invented the modern day air cooler that the Coolermaster 212's and many others are based on. It was the Thermalright Ultra 120 that started it all a few decades ago.
I still have an SLK-900 around here somewhere. I feel like I ought to turn it into a display piece.

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Jan 25, 2026 5:38 PM
161 Comments
Joined Apr 2025
MaziRoddy999Jan 25, 2026 5:38 PM
161 Comments
Quote from HansGruber :
Thermalright invented the modern day air cooler that the Coolermaster 212's and many others are based on. It was the Thermalright Ultra 120 that started it all a few decades ago.
Thanks for the clarification. So, I did some quick research online to see if I could get a look at the Ultra 120 cooler you had referenced and thank God for Newegg because they were the only website that carried an image: Thermalright Ultra-120 Extreme CPU Heatsink [newegg.com]
That cooler sort of reminded me of this CPU cooler I once purchased over 16 years ago: Prolimatech Megahalems Rev.B CPU Cooler [newegg.com]
Jan 25, 2026 6:32 PM
133 Comments
Joined Dec 2015
lush8Jan 25, 2026 6:32 PM
133 Comments
Quote from Superorb :
These $20 6-pipe air coolers can perform as good as 240mm water coolers and at par with some of the 360mm water coolers. And they don't clog up or fail like water coolers. And they're a lot cheaper.
I also prefer the aesthetic of air coolers. Never been a fan of all the empty space an AIO leaves and much prefer a chunky ass air cooler even with a 65w cpu lol. Thank god Thermalright's coolers are both very good and cheap enough that I can do this.
Jan 25, 2026 11:02 PM
6.7K Comments
Joined Dec 2004
CaleoJan 25, 2026 11:02 PM
6.7K Comments
If these are a true 155mm height, they should work in the Cooler Master NR200 with the perforated panel. That's awesome.
I think I might snag one of these at this price just to have in case my 240mm AIO bites the dust.
Last edited by Caleo January 25, 2026 at 03:27 PM.
Jan 26, 2026 1:02 AM
428 Comments
Joined Nov 2011
FatCatsFlatWalletJan 26, 2026 1:02 AM
428 Comments
noice.. im in the market for a new cooler and im not looking to tweak and the price is right.. but i got stuck with teamgroup's DDR5s aka the burj khalifa of RGB sticks from another slickdeal.. heres hoping the thinner front fans would do the trick.
Last edited by FluffyCatsFlatWallet January 25, 2026 at 05:37 PM.
Jan 26, 2026 5:26 PM
841 Comments
Joined Apr 2008
AoDAzraelJan 26, 2026 5:26 PM
841 Comments
Quote from MaziRoddy999 :
Thanks for the clarification. So, I did some quick research online to see if I could get a look at the Ultra 120 cooler you had referenced and thank God for Newegg because they were the only website that carried an image: Thermalright Ultra-120 Extreme CPU Heatsink [newegg.com]
That cooler sort of reminded me of this CPU cooler I once purchased over 16 years ago: Prolimatech Megahalems Rev.B CPU Cooler [newegg.com]
Whhhhoooaaa I completely forgot about the Megahalems, been a long time since I've seen that name. Those were the days when I was ultimately stuck between buying the Thermalright Silver Arrow and Noctua NH-D14. Those were $100 coolers back then, now we're at the point were you can get something comparable (Peerless Assassin) for like $35, it's crazy. Hell the modern Noctua halo air cooler is still pretty damn expensive...
Jan 26, 2026 5:29 PM
841 Comments
Joined Apr 2008
AoDAzraelJan 26, 2026 5:29 PM
841 Comments
Quote from lush8 :
I also prefer the aesthetic of air coolers. Never been a fan of all the empty space an AIO leaves and much prefer a chunky ass air cooler even with a 65w cpu lol. Thank god Thermalright's coolers are both very good and cheap enough that I can do this.
IMO big twin-tower air coolers give me kind of a muscle car, cafe or chopper bike vibe with the heat pipes and massive visible radiator fins. Having a big fark Noctua in the case used to be a flex before ARGB and ADHD light shows became all the rage.
Jan 28, 2026 5:39 AM
161 Comments
Joined Apr 2025
MaziRoddy999Jan 28, 2026 5:39 AM
161 Comments
Quote from AoDAzrael :
Whhhhoooaaa I completely forgot about the Megahalems, been a long time since I've seen that name. Those were the days when I was ultimately stuck between buying the Thermalright Silver Arrow and Noctua NH-D14. Those were $100 coolers back then, now we're at the point were you can get something comparable (Peerless Assassin) for like $35, it's crazy. Hell the modern Noctua halo air cooler is still pretty damn expensive...
After purchasing my Noctua NH-U14S back in 2014, I said never again due to how expensive they've become all because of brand recognition. Since then, I've purchased myself both the be Quiet! Dark Rock Pro 4 and Dark Rock Pro 5, a DeepCool GAMMAXX AG400 (before they got banned), and a few (4x) Cooler Master Hyper 212 Blacks as they went on sale over the years. I actually bought the Megahalems cooler as a recommendation from a member in the EVGA forums back in the day of all places and I didn't have a clue if it sucked or not, but it was at a time when there wasn't as many dumb a$$ people chattering on the internet as there are now, lol.

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Jan 28, 2026 7:23 AM
7.3K Comments
Joined Sep 2013
PetSpyJan 28, 2026 7:23 AM
7.3K Comments
i dislike the TR's with two different fans 🫢
i guess if you RGB ram, the offset is nice.

i noticed a 130mm is mixed with a 120mm,
so many TR variations you have to pay
close attention to what they are selling you.
Last edited by PetSpy January 27, 2026 at 11:27 PM.

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