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Thermalright Peerless Assassin 120 Mini Black CPU Cooler, 6 Heat Pipes AGHP Technology, with 120mm PWM Fan, 1500RPM Speed, for AMD:AM4 AM5/Intel LGA 1851/1700/1150/1151/1200/2011,PC Cooler
Thermalright

Thermalright Peerless Assassin 120 Mini Black CPU Cooler

Bottom line: The Thermalright Peerless Assassin 120 Mini Black CPU Cooler: 120mm TL-D12B PWM fan pushes 66.87 CFM at 1500 RPM +/-10%; main trade-off: single-fan tower, so no push-pull out of the box.

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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.

Pros & Cons

Pros

  • ✓ 120mm TL-D12B PWM fan pushes 66.87 CFM at 1500 RPM +/-10%
  • ✓ Rated 25.6 dB(A) max, quiet enough for an open-air desk build
  • ✓ 135mm height clears most mid-towers where 155mm+ towers do not
  • ✓ Fits LGA1851/1700/1200/115x and AM4/AM5 with brackets in the box

Cons

  • ✗ Single-fan tower, so no push-pull out of the box
  • ✗ Blacked-out fins and fan mean no RGB or ARGB lighting
  • ✗ 125mm depth can crowd tall RAM in the first DIMM slot
  • ✗ Mounting hardware needs the paper guide; no tool-free clip system

SpecPicks Verdict

SpecPicks scored Thermalright Peerless Assassin 120 Mini Black CPU 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

  • [Brand Overview] Thermalright is a Taiwanese brand with more than 20 years of development history. It has a certain degree of popularity in the domestic and international markets, and has a decisive influence in the cooler market. We have been focusing on the research and development of computer accessories. The R&D product line includes: CPU coolers, CPU water cooling coolers, case fans, thermally conductive silicone grease, accessories and other products.
  • [AGHP Technology] 6x6mm heatpipes adopt AGHP upgraded 4th generation technology to solve the effect of anti-gravity caused by vertical/horizontal direction, and 6 pure black fully plated heatpipes, which will bring out the heat dissipation to a better level with the help of 12cm performance fans.
  • [PWM Fan] CPU Fan Model: TL-D12B; Standard Size PWM Performance Fan: 120x120x25mm (4.72x4.72x0.98 inches); Fan Speed (RPM): 1500rpm±10%; Power Port: 4-pin; Voltage: 12V; Air Flow: 66.87CFM (Max); Noise Level ≤ 25.6dB(A) The S-FDB bearing of CPU fan has an industrial life of up to 20,000 hours, which can ensure the service life of air-cooling radiator.
  • [Product Specifications] PA120 MINI BLACK; CPU cooling size: 125 (L) x 110 (W) x 135 (H) mm (4.92 x 5.31 x 5.31 inches); Cooler material: aluminium. The main body is fully blackened with antioxidant coating + CNC precision micro-engraved copper base, creating a black look with symmetrical mech-type fins.
  • [Compatibility] CPU cooler slot support: Intel: LGA1150/1151/1155/1156/1200/1700/1851; AMD: AM4/AM5; for different CPU slot platforms, the cooler's mounting kit provides the appropriate mounting plate or fasteners, can be combined with the installation instructions or follow the tutorials to the machine.

Full Specifications

BrandThermalright
ModelPA120 MINI BLACK
Voltage12 volts
MaterialAluminum
Dimensions120x120x25mm
Unit Count1 Count
Noise Level25.6 db
Part NumberPA120 MINI BLACK
CompatibilityPC
Material TypeAluminum
Cooling MethodAir
Number of Items1
Number of Packs1
Air Flow Capacity66.87 cfm
Compatible DevicesDesktop
Included ComponentsCPU cooler
Power Connector Type4-Pin
Maximum Rotational Speed1500 rpm
Item Dimensions L x W x H4.33"L x 5.31"W x 4.92"H
Full listing titleThermalright Peerless Assassin 120 Mini Black CPU Cooler, 6 Heat Pipes AGHP Technology, with 120mm PWM Fan, 1500RPM Speed, for AMD:AM4 AM5/Intel LGA 1851/1700/1150/1151/1200/2011,PC Cooler

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Thermalright Peerless Assassin 120 Mini Black CPU Cooler, 6 Heat Pipes AGHP Technology, with 120mm PWM Fan, 1500RPM Speed, for AMD:AM4 AM5/Intel LGA 1851/1700/1150/1151/1200/2011,PC Cooler 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.

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