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Thermalright Assassin X 120R Digital ARGB Black CPU Air Cooler, 2000RPM Speed,4 Heatpipes, 12cm Quiet PWM Fan CPU Cooler, Digital Screen Top Cover,for AM4/AM5,Intel LGA1700/1851/1150/1151/1200
Thermalright

Thermalright Assassin X 120R Digital ARGB Black CPU Air Cooler

Bottom line: The Thermalright Assassin X 120R Digital ARGB Black CPU Air Cooler: 4x6mm AGHP 4th-gen nickel-plated heat pipes; main trade-off: digital screen needs a free 9-pin motherboard USB header.

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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

  • ✓ 4x6mm AGHP 4th-gen nickel-plated heat pipes
  • ✓ 151mm height clears most mid-tower cases
  • ✓ 2000RPM PWM fan auto-scales with CPU temp
  • ✓ Digital top screen plus 5V 3-pin ARGB sync

Cons

  • ✗ Digital screen needs a free 9-pin motherboard USB header
  • ✗ Requires Thermalright TRCC software running in background
  • ✗ Only 4 heat pipes and one 120mm fan for hot CPUs
  • ✗ 151mm height too tall for slim or SFF cases

SpecPicks Verdict

SpecPicks scored Thermalright Assassin X 120R Digital ARGB Black 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

  • [2000RPM PWM Fan] The heatsink cooler is equipped with a performance-level fan speed of 2000RPM,and the cpu fan has a PWM function,which can adjust the speed according to the temperature of the motherboard,without manual adjustment.UL CLASSA safety insulation grade industrial grade PBT+PC material,as well as the S-FDB bearing of the fan,can well solve the problem of fan blade shaking in hoisting mode.Silicone corner pads around the fan can reduce the noise caused by rotation to a certain extent
  • [151mm Heat Dissipation Height] The overall height of the heatsink cooler is 151mm, which is compatible with most cases without sacrificing heat dissipation performance, making the heatsink more compatible. The top cover design of the digital screen improves the overall appearance, so that the high heat dissipation function and aesthetics of the radiator are combined
  • [AGHP Heat Pipe Technology] 4x6mm heat pipe adopts AGHP upgraded 4th generation technology, which solves the influence of anti-gravity caused by the vertical and horizontal mounting directions. Seiko heat pipe's direct contact process, HDT direct touch fine bottom surface treatment, combined with nickel-plated anti-oxidation heat pipes, so that the heat dissipation effect is improved
  • [ARGB Divine Light Synchronization] The ARGB of the pwm fan is synchronized with the 5V 3pin on the motherboard to achieve light synchronization. The colourful soft light effect of this ARGB fan provides rich lighting effects while efficiently dissipating heat, cooling the CPU temperature while realizing the colour changing transformation, combining the performance with the colour perfectly.
  • [Digital Screen Software Description]The power supply and data communication transmission of the digital screen are provided by the 9-pin USB interface of the motherboard. Before installing the TRCC software, please confirm that the wiring is complete. The software can be downloaded from the official website. After installation, it will automatically boot up with the computer and stay in the background. Do not turn off or exit

Full Specifications

BrandThermalright
ModelAX120R D ARGB BLACK
Voltage12 volts_of_direct_current
MaterialPbt+Pc
Noise Level29.8 db
Part NumberAX120R D ARGB BLACK
ConnectivityUSB
CompatibilityPC
Material TypePbt+Pc
Cooling MethodAir
Number of Items1
Number of Packs1
Air Flow Capacity70.84 cfm
Compatible DevicesDesktop
Included Componentscpu cooler
Power Connector Type4-Pin
Maximum Rotational Speed2000 rpm
Item Dimensions L x W x H4.72"L x 2.8"W x 5.94"H
Full listing titleThermalright Assassin X 120R Digital ARGB Black CPU Air Cooler, 2000RPM Speed,4 Heatpipes, 12cm Quiet PWM Fan CPU Cooler, Digital Screen Top Cover,for AM4/AM5,Intel LGA1700/1851/1150/1151/1200

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Thermalright Assassin X 120R Digital ARGB Black CPU Air Cooler, 2000RPM Speed,4 Heatpipes, 12cm Quiet PWM Fan CPU Cooler, Digital Screen Top Cover,for AM4/AM5,Intel LGA1700/1851/1150/1151/1200 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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