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Black rectangular radiator with three 140 mm fans and a square mirror-finish water block connected by black rubber tubes

Thermaltake

Thermaltake TH420 V2 ARGB liquid cooler CL-W376-PL14SW-A

SKU CH-05VK-M1C4J MPN CL-W376-PL14SW-A

A 420 mm radiator with three 140 mm hydraulic-bearing fans and a copper cold plate cools Intel and AMD CPUs while addressable RGB lighting syncs with motherboard software

  • TypeLiquid Cooling System
  • Block CompatibilityIntel LGA 2066/2011/1851/1700/1200/1156/1155/1151/1150 AMD A
  • Block MaterialCopper
  • Radiator Size456 x 139 x 27 mm
  • Radiator MaterialAluminum
  • Fan Size3 Fan Slots (140 mm)

Fan Size 3 Fan Slots (140mm)

Struck-through versions exist but are not stocked here.

Color Black

  • Broad CPU compatibility across Intel LGA 2066, 2011, 1851, 1700, 1200, 1156, 1155, 1151, 1150 and AMD AM5, AM4, AM3+, AM3, AM2+, AM2 sockets
  • Quiet operation with hydraulic-bearing fans rated at 34.7 dB-A maximum noise
  • High airflow cooling from three 140 mm fans delivering up to 84.32 CFM
  • Flexible speed control via PWM 500 to 1800 RPM range for silent or performance modes
  • Addressable RGB lighting synchronised through motherboard 5 V ARGB header for custom colours

420 mm radiator AIO for Intel and AMD CPUs

The Thermaltake TH420 V2 ARGB is a 420 mm all-in-one liquid cooler built for current Intel LGA 1700 and AMD AM5 platforms as well as older sockets. A copper cold plate transfers heat to an aluminium radiator measuring 456 x 139 x 27 mm. Three 140 mm fans with hydraulic bearings push up to 84.32 CFM through the fins. Addressable RGB lighting on the pump and fans syncs via a 5 V three-pin header.

Socket coverage decides fit

Block compatibility lists Intel LGA 2066, 2011, 1851, 1700, 1200, 1156, 1155, 1151 and 1150 plus AMD AM5, AM4, AM3+, AM3, AM2+ and AM2. If your motherboard uses a socket outside this list the cooler will not mount. The pump connects with a standard 4-pin PWM header (2510 type) and a separate 5 V ARGB header for lighting control.

Thermals and acoustics at load

At maximum PWM speed of 1800 RPM the fans produce 34.7 dB-A while moving 84.32 CFM across the radiator. The hydraulic bearing design keeps noise steady through the 500 to 1800 RPM range. Rubber tubes 460 mm long give enough reach for most mid-tower and full-tower layouts without kinking. Power draw is limited to the fan and pump headers on the motherboard.

Highlights

  • Broad CPU compatibility across Intel LGA 2066, 2011, 1851, 1700, 1200, 1156, 1155, 1151, 1150 and AMD AM5, AM4, AM3+, AM3, AM2+, AM2 sockets
  • Quiet operation with hydraulic-bearing fans rated at 34.7 dB-A maximum noise
  • High airflow cooling from three 140 mm fans delivering up to 84.32 CFM
  • Flexible speed control via PWM 500 to 1800 RPM range for silent or performance modes
  • Addressable RGB lighting synchronised through motherboard 5 V ARGB header for custom colours

Specifications

BrandThermaltake
SeriesTH420 V2 ARGB
ModelCL-W376-PL14SW-A
TypeLiquid Cooling System
Block CompatibilityIntel LGA 2066/2011/1851/1700/1200/1156/1155/1151/1150
AMD AM5/AM4/AM3+/AM3/AM2+/AM2
Block MaterialCopper
Radiator Size456 x 139 x 27 mm
Radiator MaterialAluminum
Fan Size3 Fan Slots (140 mm)
Fan Dim.140 x 140 x 25 mm
Bearing TypeHydraulic Bearing
Fan RPMPWM 500~1800 R.P.M
Fan Air Flow84.32 CFM Max.
Fan Noise34.7 dB-A
Fan Connector2510 - 4 Pin PWM , 5V ARGB header - 3 Pin
ColorBlack
LED ColorARGB
Tube Dim.Length: 460 mm
Tube MaterialRubber
Shipping weight2.90 kg
Package size518 × 208 × 155 mm

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What does the 84.32 CFM maximum airflow mean for CPU temperatures in a real build?

The three 140 mm fans can move up to 84.32 CFM each at 1800 RPM, giving strong radiator throughput that keeps modern high-wattage CPUs cool under sustained loads.

How does the 5V ARGB 3-pin header control the lighting in practice?

Connect the 3-pin 5V ARGB cable to a compatible motherboard header and the waterblock plus all three fans sync through the board's RGB software — no separate controller required.

Will the 456 mm long radiator with 27 mm thickness fit in a standard mid-tower case?

The radiator measures 456 x 139 x 27 mm and needs three 140 mm fan slots; check your case specs for a 420 mm top or front mount with at least 27 mm clearance.

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