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Thermalright PeerlessAssassin120 SEARGB CPU Air Cooler, 6 Heat Pipes Cpu cooler, Dual 120mm TL-C12C-S PWM Fan, Aluminium Heatsink Cover, AGHP Technology, for AMD AM4/AM5 Intel 1700/1150/1151/1200/2066
Purchase options and add-ons
Product Dimensions | 12.5L x 13.5W x 15.5H Centimetres |
Brand | Thermalright |
Power connector type | 4-Pin |
Voltage | 12 Volts |
Wattage | 245 watts |
Cooling method | Air |
Compatible devices | Desktop |
Noise level | 25.6 dB |
Material | Aluminum |
Maximum rotational speed | 1550 RPM |
About this item
- [Brand Overview] Thermalright is a Taiwan brand with more than 20 years of development. It has a certain popularity in the domestic and foreign markets and has a pivotal influence in the player market. We have been focusing on the research and development of computer accessories. R & D product lines include: CPU air-cooled radiator, case fan, thermal silicone pad, thermal silicone grease, CPU fan controller, anti falling off mounting bracket, support mounting bracket and other commodities
- [Product specification] Thermalright PA120 SE ARGB; CPU Cooler dimensions: 125(L)x135(W)x155(H)mm (4.92x5.31x6.1 inch); heat sink material: aluminum, CPU cooler is equipped with metal fasteners of Intel & AMD platform to achieve better installation, double tower cooling is stronger
- 【2 PWM Fans】Model:TL-C12C-S; Colorful and gorgeous ARGB light effects; Standard size PWM fan:120x120x25mm (4.72x4.72x0.98 inches); Product weight:0.97kg(2.1lb); fan speed (RPM):1500rpm±10%; power port: 4pin; Voltage:12V; Air flow:66.17CFM(MAX); Noise Level≤25.6dB(A), leave room for memory-chip(RAM), so that installation of ice cooler cpu is unrestricted
- 【AGHP technique】6×6mm heat pipes apply AGHP technique, Solve the Inverse gravity effect caused by vertical / horizontal orientation, cpu cooler TDP is 120 to 245W. 6 pure copper sintered heat pipes & PWM fan & Pure copper base&Full electroplating reflow welding process, When CPU cooler works, match with ultra-silent airflow fans, aim to extreme CPU cooling performance
- 【AGHP technique】6×6mm heat pipes apply AGHP technique, Solve the Inverse gravity effect caused by vertical / horizontal orientation, cpu cooler TDP is 120 to 245W. 6 pure copper sintered heat pipes & PWM fan & Pure copper base&Full electroplating reflow welding process, When CPU cooler works, match with ultra-silent airflow fans, aim to extreme CPU cooling
Product details
- Product Dimensions : 12.5 x 13.49 x 15.47 cm; 1.42 kg
- Date First Available : Nov. 25 2022
- Manufacturer : Thermalright
- Place of Business : http://thermalright-china.com/product-category/heatsink/
- ASIN : B0BNBCYF38
- Manufacturer reference : PA120 SE ARGB D6-CAD
- Country of origin : China
- 鶹 Rank: #3,260 in Electronics (See Top 100 in Electronics)
- #10 in Computer CPU Cooling Fans
- Customer Reviews:
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Product Description


EXCELLENCE USER EXPERIENCE
Premium THERMALRIGHT TF-7 thermal paste is also included with CPU cooler for the best out-of-the-box performance. Redesigned Thermalright SS2 mounting system offers easy installation process and optimal mounting pressure.
6 AGHP (ANTI-GRAVITY HEAT PIPE) TECHNOLOGY HEAT PIPES
Common heat pipes heavily depend on gravity to achieve optimal performance.
Heatsink equipped with THERMALRIGHT Special design AGHP Heat Pipes is not affected by the mounting direction. This ensures user’s cooler experience in different computer case designs.
DUAL BALANCE PERFORMANCE TL-C12C-S FAN
Based on TL-C12 fan design, TL-C12C-S fan series achieve optimal balance between performance and noise output, therefore they are all-around fan for heatsink or radiator use scenarios. The motor is equipped with S-FDB bearing for smooth operation and long life span.

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Customer reviews
Customers say
Customers like the cooling performance, appearance, and installation of the electronic component fan. They mention it does an amazing job cooling their R7 5800X, drops their CPU temps by 20 Celsius when under synthetic loads, and works surprisingly well. Customers are also happy with the quality. However, some customers have different opinions on the quiet operation.
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Customers are satisfied with the cooling performance of the product. They mention it does an amazing job cooling their R7 5800X, drops their CPU temps by 20 Celsius when under synthetic loads, and has strong fans that work great at pushing or pulling heat from the CPU. Customers also appreciate the dual block for extra cooling. They also say the product is surprisingly good for stabilizing the temperature of the CPU and doesn't need a water cooler.
"...Performed above expectations and excellently dropping my cpu all the way down to 60° under full load (a 30-40° difference) Pros:..." Read more
"...highly recommend this cooler if you want something to look good and perform well." Read more
"...It does a lovely job of cooling my am5 ryzen processor and has a very nice visual appeal overall...." Read more
"...After a bit of fine tuning, idle temps dropped 15-20 degrees on average. Looks great in my rig, and works awesome. Highly recommend." Read more
Customers like the appearance of the product. They mention it looks nice, is easy to install, and has good value.
"...I highly recommend this cooler if you want something to look good and perform well." Read more
"...does a lovely job of cooling my am5 ryzen processor and has a very nice visual appeal overall...." Read more
"...Looks great in my rig, and works awesome. Highly recommend." Read more
"...all mounting hardware for different chips, fans a big, quiet and beautiful with the RGB powered, the mounting design works and with minimal messing..." Read more
Customers find the installation of the product easy. They mention the instructions are clear.
"...Pros: Easy install and came with brackets for older intel models/lga 1700 and am4/am5 6 heat pipes and dual block for extra cooling..." Read more
"...Install was a breeze, it took longer to remove the old wraith cooler...." Read more
"Very easy to install, instructions were clear. The thing is a MONSTER! Its huge, But Im certain Ill never have any issues with my cpu overheating...." Read more
"...cooling before but this is quit the same cooling capacity and so easy to install in comparison" Read more
Customers are satisfied with the performance of the product. They mention it works surprisingly well and the mounting system works very well on their AM4 motherboards. They also mention it works with the Asus Z690-E, which has a massive plastic.
"...Looks great in my rig, and works awesome. Highly recommend." Read more
"...on the other hand, this cooler works with asus z690-E, which has a massive plastic cover...." Read more
"Works amazing!..." Read more
"Works surprisingly well..." Read more
Customers are satisfied with the quality of the product. They mention it's excellent, on par or better than much more expensive coolers.
"...The fans are of a decent quality as well (I went with the RGB version)...." Read more
"I bought this twin tower cooler, it's good and seems to do a good job cooling the AM4 socket processor, but if you want to get the best out of it,..." Read more
"Ita Good." Read more
"Excellent, on par or better than much more expensive coolers..." Read more
Customers have mixed opinions about the quiet operation of the fan. Some mention it's super quiet, while others say it's very noisy when paired with a Ryzen 9 7900X.
"...Very high ram clearance Only $40(cad) Pretty damn quiet even at max speeds, if ur wearing any type of headphones or any background noise..." Read more
"...It does produce some sound, but it's not overally loud. Can recommend!" Read more
"...all mounting hardware for different chips, fans a big, quiet and beautiful with the RGB powered, the mounting design works and with minimal messing..." Read more
"Looks cool, has great cooling and is super quiet...." Read more
Reviews with images

The Perfect Air cooler
Top reviews from Canada
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- Reviewed in Canada on June 15, 2025Verified PurchaseGreat! Works perfectly
- Reviewed in Canada on March 8, 2025Verified PurchaseI have an overclocked Ryzen 7 5800XT at 4600mhz at 1.35v, and normally, these suck at head dissipation and get HOT. With this cooler, I managed to get temps under full load to 60 degrees Celsius, which is great! I highly recommend this cooler if you want something to look good and perform well.
- Reviewed in Canada on December 21, 2024Verified PurchasePurchased this because my previous heatsink was the wrong way and was very small. I was getting temps at idle on my ryzen with Core Performance boost tuned up on near 51c-60c. Replaced the heatsink with a proper direction and this beast and now it sits idle at 25-29c. I did not use the thermal paste included, I went with the artic brand but overall this will really help keep things cool.. Its the budget noctua for sure.
- Reviewed in Canada on June 21, 2024Verified PurchaseBought this after realizing my cpu (12600kf) was running at 90-100° under full load, had bought a pre built that only came with a single block radiator aio. Read some reviews and found this to be a universal winner for the price and wattage range. Performed above expectations and excellently dropping my cpu all the way down to 60° under full load (a 30-40° difference)
Pros:
Easy install and came with brackets for older intel models/lga 1700 and am4/am5
6 heat pipes and dual block for extra cooling
Comes with two 1550 rpm fans and thermal paste
Very high ram clearance
Only $40(cad)
Pretty damn quiet even at max speeds, if ur wearing any type of headphones or any background noise you won’t hear a thing
Cons:
Only negative I have to say is the instructions are kinda meh, would recommend just looking up a yt video and following that but the install is more than easy enough
Bought this after realizing my cpu (12600kf) was running at 90-100° under full load, had bought a pre built that only came with a single block radiator aio. Read some reviews and found this to be a universal winner for the price and wattage range. Performed above expectations and excellently dropping my cpu all the way down to 60° under full load (a 30-40° difference)
Pros:
Easy install and came with brackets for older intel models/lga 1700 and am4/am5
6 heat pipes and dual block for extra cooling
Comes with two 1550 rpm fans and thermal paste
Very high ram clearance
Only $40(cad)
Pretty damn quiet even at max speeds, if ur wearing any type of headphones or any background noise you won’t hear a thing
Cons:
Only negative I have to say is the instructions are kinda meh, would recommend just looking up a yt video and following that but the install is more than easy enough
Images in this review
- Reviewed in Canada on December 13, 2024Verified PurchaseI've been really happy with this brand as I have a few of their coolers on computers that I built. I use this one on my daughter's gaming PC and it has no trouble keeping up with extended gaming sessions. Keeps temperatures well below 80 - usually around 65° Celsius under full gaming load. Synthetic benchmarks bring it closer to 80 but I have yet to see the computer thermal throttle.
- Reviewed in Canada on July 13, 2023Verified PurchaseI bought this twin tower cooler, it's good and seems to do a good job cooling the AM4 socket processor, but if you want to get the best out of it, you'll need to pair it with two top fans that set up brings down the case thermal by 5-7 Degrees. I would advise Thermalright to sell the twin tower with their 3 fans box as a package if you want to cool the latest-gen processors and GPU!
Another point that I'm not sure about, but would like to address, try to use a thermal paste that has better efficiency than the one given in the box, you might get better results with thermals. I didn't try, but I tried two thermal pastes that were included in Thermalright boxes and I feel they could be better.
@Thermalright, it's very annoying to sell products without English instructions and well written easy to understand, please address this issue, it took me so long to understand the correct position for the AM4 socket for this cooler, how would I know that the bracket arch should be from inside and not outside without even an illustration in the manual showing the correct direction for fixing the bracket? It might sound trivial, but it will make a huge difference if I saved myself some time trying to figure it out myself..
- Reviewed in Canada on December 5, 2024Verified PurchaseGot this for my aging i5 4770k and it worked well. OCd it to 4.4ghz temporarily with temps under 80 C. With stock cooler and stock speeds got over 90 C.
I did not expect much for the price of 45, but it is better than expected.
- Reviewed in Canada on April 17, 2024Verified PurchaseThis cooler is great and preforms almost as well as the Noctua NH-D15. It's not quite as good as the Noctua costs twice as much, but it is closer than it has any right to be at that price. The main difference is the fans which as quite cheap. I recommend that you upgrade the fans if you are sensitive to noise as they have a bit of motor hum.
However, for the price, you can tbeat this performance, especially if you can bring some quality fans from an old build.