Thermalright Peerless Assassin 140

158 mm
Ratings
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Delivered between 8.1.2026 and 15.1.2026
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Colour2

Product details

As the successor to the legendary Peerless Assassin 120, the Thermalright Peerless Assassin 140 is aimed at demanding PC enthusiasts who value powerful cooling, discreet ARGB lighting and quiet operation. Ideal for high-performance gaming systems and overclocking setups.

  • Twin tower cooler design maximises heat dissipation under heavy CPU load
  • Two included fans deliver high airflow for efficient cooling
  • Six copper heatpipes for optimal heat transfer
  • Quiet fans with PWM control enable low-noise operation
  • Compatible with common Intel and AMD sockets - easy to install.

Key specifications

Socket
AM4, AM5, LGA 1150, LGA 1151, LGA 1155, LGA 1200, LGA 1700, LGA 1851, LGA 2011, LGA 2066
power connector
4-pin PWM
Diameter
140 mm
Airflow
132 m³/h
Max. TDP
250 W
Number of fans
2x
Height (with fan)
158 mm
Item number
52389020

General information

Manufacturer
Thermalright
Category
CPU coolers
Manufacturer no.
Peerless Assassin 140 White
Release date
23.10.2024

Colour

Colour
White
Exact colour description
White

Cooler properties

CPU cooler design
Dual Tower
Fan type
Tower Cooler
Socket
AM4, AM5, LGA 1150, LGA 1151, LGA 1155, LGA 1200, LGA 1700, LGA 1851, LGA 2011, LGA 2066
Supported fan sizes
120mm, 140mm

Heat sink properties

Number of heatpipes
6
Diameter heat pipe
6 mm
Materials radiator core
Copper

Fan dimensions

Diameter
140 mm

Fan properties

Number of fans
2x
Max. Speed
1500 RPM
Max. TDP
250 W
Airflow
132 m³/h
Max. noise level
25.60 dB
LED colour
without LED
Fan bearing type
Fluid Dynamic bearing

Connections

power connector
4-pin PWM

Origin

Country of origin
China

Voluntary climate contribution

CO₂-Emission
Climate contribution

Product dimensions

Width (with fan)
140 mm
Length (with fan)
159 mm
Height (with fan)
158 mm

Package dimensions

Length
27.50 cm
Width
20.80 cm
Height
17 cm
Weight
1.79 kg

30-day right of return
24 Months Warranty (Bring-in)
1 additional offer

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «CPU coolers» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 1.Thermalright
    0.1 %
  • 2.be quiet!
    0.2 %
  • 2.Noctua
    0.2 %
  • 4.Scythe
    0.3 %
  • 4.Supermicro
    0.3 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 1.Arctic
    0 days
  • 1.be quiet!
    0 days
  • 1.Noctua
    0 days
  • 1.Thermalright
    0 days
  • 5.Deepcool
    2 days

Return rate

How often is a product of this brand in the «CPU coolers» category returned?

Source: Digitec Galaxus
  • 1.Thermalright
    2.4 %
  • 2.Xilence
    2.7 %
  • 3.Endorfy
    3 %
  • 3.Intel
    3 %
  • 5.Intertech
    3.3 %
Source: Digitec Galaxus