Skip to main content
Thermalright Peerless Assassin 120 CPU Air Cooler, 6 Heat Pipes, Dual 120mm TL-C12B PWM Fan, Aluminium Heatsink Cover, AGHP Technology, for AMD AM4/Intel LGA1851/1150/1151/1200/2066/2011 (PA120 Black)
Thermalright

Thermalright Peerless Assassin 120 CPU Air Cooler

Bottom line: The Thermalright Peerless Assassin 120 CPU Air Cooler ($35.75 on Amazon as of 2026-10-07): Six 6mm sintered copper heat pipes with AGHP anti-gravity orientation handling; main trade-off: 157mm tall, too tall for many mid-tower and SFF cases.

$35.75

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Six 6mm sintered copper heat pipes with AGHP anti-gravity orientation handling
  • ✓ Offset asymmetric tower clears the first PCIe graphics card slot
  • ✓ Dual TL-C12B 120mm PWM fans push 66.17 CFM at 1500rpm
  • ✓ Rated 25.6dB(A) max, quieter than most dual-tower coolers at full tilt

Cons

  • ✗ 157mm tall, too tall for many mid-tower and SFF cases
  • ✗ 1.02kg mass puts real load on the motherboard during transport
  • ✗ Fans are fixed at 1500rpm max, no high-static-pressure upgrade included
  • ✗ Separate mounting plates per socket means sorting hardware before install

SpecPicks Verdict

SpecPicks scored Thermalright Peerless Assassin 120 CPU Air Cooler using a rating × review-volume × price-fit model applied to published specs and reviews across the cooling & fans category. Thermalright's cooling & fans lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for cooling & fans of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • 【Better cooling】 With Full electroplating reflow welding process, the main body of the twin towers is sprayed with black paint at the nanoscale, the effective heat dissipation area is 9600cm. The offset asymmetric layout is allowed to installation on first graphics card slot, so that the cooler can achieve excellent heat dissipation performance during work.
  • 【Product specification】PA120 Black; CPU Cooler dimensions: 125(L)x135(W)x157(H)mm (4.92x5.31x6.18 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.
  • 【Double PWM Fans】Model:TL-C12B; Standard size PWM fan:120x120x25mm (4.72x4.72x0.98 inches); Product weight: 1.02kg(2.25lb); fan speed (RPM): 1500rpm±10%; power port: 4pin; Voltage:12V; Air flow:66.17CFM(MAX); Noise Level≤25.6dB(A), The combination of dual fans makes the CPU cool better.
  • 【AGHP technique】6×6mm heat pipes apply AGHP technique, Solve the Inverse gravity effect caused by vertical / horizontal orientation. 6 pure copper sintered heat pipes & PWM fan & Pure copper base. When CPU cooler works, match with ultra-silent airflow fans, aim to extreme CPU cooling performance.
  • 【Compatibility】The CPU cooler Socket supports: Intel: LGA1150/1151/1155/1156/1200/1700/1851/2066/2011, AMD: AM4 AM5; For different CPU socket platforms, corresponding mounting plate or fastener parts are provided.

Full Specifications

BrandThermalright
ModelPA120 BLACK-D6
Weight1.02kg
Voltage12 Volts (DC)
Wattage7 watts
MaterialAluminum
Dimensions4.92x5.31x6.18 inch
Unit Count1 Count
Noise Level26 Decibels
Part NumberPA120 BLACK-D6
Material TypeAluminum
Cooling MethodAir
Number of Items1
Air Flow Capacity66 Cubic Feet Per Minute
Compatible DevicesDesktop
Included Components1
Power Connector Type4-Pin
Maximum Rotational Speed1550 RPM
Item Dimensions L x W x H4.92"L x 5.31"W x 6.18"H
Full listing titleThermalright Peerless Assassin 120 CPU Air Cooler, 6 Heat Pipes, Dual 120mm TL-C12B PWM Fan, Aluminium Heatsink Cover, AGHP Technology, for AMD AM4/Intel LGA1851/1150/1151/1200/2066/2011 (PA120 Black)

Ready to buy?

Thermalright Peerless Assassin 120 CPU Air Cooler, 6 Heat Pipes, Dual 120mm TL-C12B PWM Fan, Aluminium Heatsink Cover, AGHP Technology, for AMD AM4/Intel LGA1851/1150/1151/1200/2066/2011 (PA120 Black) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $35.75

*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.

Related Cooling & Fans

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →