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frontpageCrazyHorse posted Mar 4, 2026 4:12 PM

Thermalright Peerless Assassin 120 Digital 120mm CPU Air Cooler w/ Digital Display

$36

$40

10% off
+ Free Shippingat Amazon
32 Comments
16.5K Views
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Deal Details
Thermalright.Eur via Amazon has Thermalright Peerless Assassin 120 Digital 120mm CPU Air Cooler w/ Digital Display Board (PA120 D Black D6) on sale for $35.72. Shipping is free.

Thanks to Community Member CrazyHorse for finding this deal.

Product Details:
  • Six 6mm pure copper heat pipes
  • C1100 Pure copper nickel-plated base
  • Rated Speed: 1850 RPM±10% (MAX)
  • Noise Level: 25.6 dBA
  • Air Flow: 88.89 CFM (MAX)
  • Air Pressure: 2.21 mm H2O (MAX)
  • Ampere: 0.35 A
  • Connector: 4 Pin (PWM fan connector)
  • Bearing Type: S-FDB Bearing
  • Compatibility: AMD AM4 / AM5; Intel LGA1851/1700/1150/1151/1155/1156/1200

Editor's Notes

Written by Corwin | Staff
  • Our research indicates that this deal is $15.96 less (30% savings) than the next best available price from a reputable merchant with prices starting from $51.68 at the time of this posting.
  • Please see the original post for additional details and give the WIKI and additional forum comments a read for helpful discussion.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by CrazyHorse
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Thermalright.Eur via Amazon has Thermalright Peerless Assassin 120 Digital 120mm CPU Air Cooler w/ Digital Display Board (PA120 D Black D6) on sale for $35.72. Shipping is free.

Thanks to Community Member CrazyHorse for finding this deal.

Product Details:
  • Six 6mm pure copper heat pipes
  • C1100 Pure copper nickel-plated base
  • Rated Speed: 1850 RPM±10% (MAX)
  • Noise Level: 25.6 dBA
  • Air Flow: 88.89 CFM (MAX)
  • Air Pressure: 2.21 mm H2O (MAX)
  • Ampere: 0.35 A
  • Connector: 4 Pin (PWM fan connector)
  • Bearing Type: S-FDB Bearing
  • Compatibility: AMD AM4 / AM5; Intel LGA1851/1700/1150/1151/1155/1156/1200

Editor's Notes

Written by Corwin | Staff
  • Our research indicates that this deal is $15.96 less (30% savings) than the next best available price from a reputable merchant with prices starting from $51.68 at the time of this posting.
  • Please see the original post for additional details and give the WIKI and additional forum comments a read for helpful discussion.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by CrazyHorse

Community Voting

Deal Score
+69
Good Deal
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Top Comments

altimecca
64Comments
25Reputation
The description says that it plugs into a 9-pin USB header. You'll need a spare USB header in your computer for you to have your temps displayed.
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PeterD8649
24Comments
14Reputation
Peerless Assassin 120 is great. The Peerless Assassin 140 is even better. If you really want to step it up, get the Royal Pretor 130. Just be aware that these are very large and fairly tall coolers. So you may want to ensure the width of your case is large enough to support cpu coolers that are as tall as the Pretor 130 and Assassin 140. Your case's technical specs should state the maximum cooler height that the case supports.
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32 Comments

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Mar 4, 2026 4:36 PM
147 Comments
Joined Jan 2012
VeridorMar 4, 2026 4:36 PM
147 Comments
Is this functionally the same as the Peerless Assassin 120 SE? I just noticed this one doesn't gave the SE designation. I just bought a Refined Assassin X120 SE for my 7600X3D build but wonder about returning that for this at this price point. Might be overkill but also more future proof.
Mar 4, 2026 5:22 PM
7.3K Comments
Joined Sep 2013
PetSpyMar 4, 2026 5:22 PM
7.3K Comments
i would stay with what you got, as it's more than enough to keep your 105w cpu under 95C throttle range.
Mar 4, 2026 5:30 PM
36 Comments
Joined Nov 2003
aageeMar 4, 2026 5:30 PM
36 Comments
How is it displaying the GPU temperature?!
1
Mar 4, 2026 5:41 PM
158 Comments
Joined Aug 2018
zv300Mar 4, 2026 5:41 PM
158 Comments
This appears to be one of the best Air Coolers out there. Going to check Noctua and if this is cheaper I am going to bite as I am building a system now.
Mar 4, 2026 6:32 PM
227 Comments
Joined Nov 2009
ChickaChickaYeahMar 4, 2026 6:32 PM
227 Comments
Quote from aagee :
How is it displaying the GPU temperature?!
It's the software, there's nothing built in that can read either the CPU or GPU
Mar 4, 2026 6:41 PM
36 Comments
Joined Nov 2003
aageeMar 4, 2026 6:41 PM
36 Comments
Quote from ChickaChickaYeah :
It's the software, there's nothing built in that can read either the CPU or GPU
Curious - how does the software communicate the temperatures to the cooler? I mean, the only connection these have is the 4-pin fan connector on the board. Or is that not right?
2
Mar 4, 2026 7:23 PM
6.2K Comments
Joined Nov 2012
balloonsharkMar 4, 2026 7:23 PM
6.2K Comments
I have a grey peerless assassin cooling this 12700K and it does just fine.

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Mar 4, 2026 7:32 PM
64 Comments
Joined Apr 2011
altimeccaMar 4, 2026 7:32 PM
64 Comments

Our community has rated this post as helpful. If you agree, why not thank altimecca

Quote from aagee :
Curious - how does the software communicate the temperatures to the cooler? I mean, the only connection these have is the 4-pin fan connector on the board. Or is that not right?
The description says that it plugs into a 9-pin USB header. You'll need a spare USB header in your computer for you to have your temps displayed.
3
Mar 4, 2026 7:55 PM
24 Comments
Joined Oct 2015
PeterD8649Mar 4, 2026 7:55 PM
24 Comments

Our community has rated this post as helpful. If you agree, why not thank PeterD8649

Peerless Assassin 120 is great. The Peerless Assassin 140 is even better. If you really want to step it up, get the Royal Pretor 130. Just be aware that these are very large and fairly tall coolers. So you may want to ensure the width of your case is large enough to support cpu coolers that are as tall as the Pretor 130 and Assassin 140. Your case's technical specs should state the maximum cooler height that the case supports.
3
Mar 5, 2026 1:25 AM
1.4K Comments
Joined Dec 2008
ZV3Mar 5, 2026 1:25 AM
1.4K Comments
Quote from PeterD8649 :
Peerless Assassin 120 is great. The Peerless Assassin 140 is even better. If you really want to step it up, get the Royal Pretor 130. Just be aware that these are very large and fairly tall coolers. So you may want to ensure the width of your case is large enough to support cpu coolers that are as tall as the Pretor 130 and Assassin 140. Your case's technical specs should state the maximum cooler height that the case supports.
Thanks dude, your suggestions helped me to get the Royal Pretor 130 which is on sale on Amazon now....just purchased it after reading the stellar reviews. Building a 9800X3D system and want something pretty solid.... appreciate it!
Mar 5, 2026 1:41 AM
569 Comments
Joined Feb 2018
WillRep4HelpMar 5, 2026 1:41 AM
569 Comments
This looks cool
Mar 5, 2026 1:46 AM
145 Comments
Joined Mar 2016

This comment has been rated as unhelpful by Slickdeals users.

Mar 5, 2026 1:50 AM
171 Comments
Joined Mar 2011
TideasMar 5, 2026 1:50 AM
171 Comments
Peerless assassin is better
2
Mar 5, 2026 1:57 AM
175 Comments
Joined Mar 2023
abooseMar 5, 2026 1:57 AM
175 Comments
Quote from Tideas :
Peerless assassin is better
bro this is the peerless assassin
5

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Mar 5, 2026 2:11 AM
3.8K Comments
Joined Dec 2008
clinteastwoodMar 5, 2026 2:11 AM
3.8K Comments
Quote from PeterD8649 :
Peerless Assassin 120 is great. The Peerless Assassin 140 is even better. If you really want to step it up, get the Royal Pretor 130. Just be aware that these are very large and fairly tall coolers. So you may want to ensure the width of your case is large enough to support cpu coolers that are as tall as the Pretor 130 and Assassin 140. Your case's technical specs should state the maximum cooler height that the case supports.
Any of those heatsinks are plenty for something like a 7800x3d.

If a CPU is at ~90c or less at full load it's fine.

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