Skip to main content
Thermaltake AW420 Liquid Cooler (Intel LGA 4677 / AMD sTR5/SP6) 420mm Raditator, 3x140mm 500~2000rpm PWM Toughfan Pro, Nickel-Plated Copper Block, Black, CL-W445-PL14BL-A

Thermaltake AW420 Liquid Cooler 420mm Raditator (CL-W445-PL14BL-A)

Bottom line: The Thermaltake AW420 Liquid Cooler 420mm Raditator is a specs-and-price decision rather than a crowd-consensus one in the retro cpu coolers & fans category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

Check price on Amazon

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

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Before you buy

  • Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

Offering a premium cooling solution for workstation Intel LGA 4677 and AMD sTR5/SP6 processors the AW420 Liquid Cooler has plenty of features to get the job done. Equipped with a large, nickel-plated copper water block connecting to a 420mm radiator. Cooled by a trio of TOUGHFAN PROs that are capable of up to 3.57mm-H2O of static pressure and 119.6 CFM of airflow with speeds ranging from 500~2000rpm via PWM control. Spinning up to 4000rpm is a three-phase, six-pole motor mounted in the radiator.

SpecPicks Verdict

SpecPicks scored Thermaltake AW420 Liquid Cooler 420mm Raditator using a rating × review-volume × price-fit model applied to published specs and reviews across the retro cpu coolers & fans category. Compare with similarly-priced alternatives in the retro cpu coolers & fans category before committing. 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 retro cpu coolers & 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

  • 【Workstation Ready】Perfect for use in home workstations utilizing Intel LGA 4677 and AMD sTR5/SP6 platforms, and designed to provide performance needed for demanding workloads like 3D rendering and AI Computing.
  • 【TOUGHFAN Pro Perfect】Removing heat from the 420mm radiator are three 140mm TOUGHFAN PROs capable of 3.57mm-H2O static pressure, 119.6 CFM of airflow, and RPMs from 500~2000. Achieved by advance LCP blades that have been tuned for both airflow and static pressure.
  • 【Large Water Block Base】Equipped with a large water block base made from Nickel-Plated Copper for optimal heat dissapation and reliability, also helping to ensure full coverage of the CPU for either platform.
  • 【Silent Performance】Capable of reaching speeds of 4000rpms by utilizing a three-phase, six-pole motor for the pump that has been integrated into the radiator for not just optimal cooling performance but for a reduction in noise levels as well.
  • 【Versatile Adaptability】The AW series pairs well with many workstation and conventional chassis thanks to its standard 360mm AIO radiator sizing as well as 460mm sleeved tubing.

Full Specifications

BrandThermaltake
ModelAW420
Voltage12 volts
Wattage16.56 watts
MaterialNickel-Plated Copper, Lcp
Unit Count1 Count
Noise Level31.6 db
Part NumberAW420
Material TypeNickel-Plated Copper, Lcp
Cooling MethodLiquid
Number of Items1
Air Flow Capacity119.6 cfm
Compatible DevicesDesktop
Power Connector Type4-Pin
Warranty Description3 Year Manufacturer
Maximum Rotational Speed4000 rpm
Full listing titleThermaltake AW420 Liquid Cooler (Intel LGA 4677 / AMD sTR5/SP6) 420mm Raditator, 3x140mm 500~2000rpm PWM Toughfan Pro, Nickel-Plated Copper Block, Black, CL-W445-PL14BL-A

Ready to buy?

Thermaltake AW420 Liquid Cooler (Intel LGA 4677 / AMD sTR5/SP6) 420mm Raditator, 3x140mm 500~2000rpm PWM Toughfan Pro, Nickel-Plated Copper Block, Black, CL-W445-PL14BL-A 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.

Check price on Amazon →

Related Retro CPU Coolers & 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 →