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White 420 mm AIO radiator with three 140 mm ARGB fans and brushed aluminium pump cover

Phanteks

Phanteks PH-GO420D30_DWT02 liquid cooler

SKU CH-G5Q4-M33EY MPN PH-GO420D30_DWT02

A 420 mm all-in-one liquid CPU cooler with three 140 mm D-RGB fans, a copper cold plate, and an aluminum pump cover that integrates a VRM fan for Intel LGA 115x, 1200, 1700, 1851 and AMD AM4.

  • Radiator size456 × 138.5 × 27 mm
  • Fan size3 Fan Slots (140 mm)
  • Compatible socketsIntel Socket LGA 115x, 1200, 1700, 1851 AMD Socket AM4, AM5
  • Pump rotation speed3100 ± 10% RPM with 100% duty cycle
  • Pump dimensions85.5 × 80.9 × 65.9 mm
  • Pump bearingCeramic bearing

Fan Size 3 Fan Slots (140mm)

Color White

Model 420D30 X2

  • High-performance 420 mm radiator with large copper base
  • Three 140 mm D30 fans interconnect into a single frame for simpler cable runs
  • Pump runs at 3100 RPM with ceramic bearing and 20 dBA noise
  • Aluminium pump cover includes integrated fan to cool VRM and M.2 areas
  • Supports Intel LGA 115x, 1200, 1700, 1851 and AMD AM4, AM5 sockets

420 mm AIO for high-end CPUs

The Glacier One 420D30 X2 is a 420 mm all-in-one liquid cooler built for high-end desktop processors. It mounts on Intel LGA 115x, 1200, 1700 and 1851 sockets as well as AMD AM4 and AM5 platforms. Three 140 mm D30 fans connect into a single frame to simplify cable routing and ARGB control. The white finish and aluminium pump cap suit clean, light-themed builds.

Sustained load behaviour

A 456 mm radiator made from AL3003 aluminium and a large copper base with fin array move heat away from the CPU during long sessions. The pump runs at 3100 RPM with a ceramic bearing and produces 20 dBA of noise. Fans operate between 250 and 1800 RPM, delivering 71.93 CFM each at a maximum of 29.5 dBA. The integrated fan on the aluminium cap directs airflow toward nearby VRM and M.2 areas for additional component cooling.

Installation notes and common issues

The 400 mm CIIR rubber tubes with 12.5 mm outside diameter and black braided sleeves set the reach between radiator and CPU block. Radiator thickness is 27 mm, so verify case support for a 420 mm radiator at that depth before purchase. The pump housing measures 85.5 by 80.9 by 65.9 mm; check clearance around the socket keep-out zone and tall memory modules. The D30 fan interlock reduces cable count, but the single combined cable must reach the motherboard ARGB header and fan header without strain.

How it compares

Measured against everything we stock in Liquid Cooling & AIO Coolers, at today’s prices. Recalculated every night.

Price $127.99
Pricier than about 75% of the 1,190 comparable items (median $71.99).

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Specifications

Product
Brand namePhanteks
Product typeAIO
Product colorWhite
Performance
Pump rotation speed3100 ± 10% RPM with 100% duty cycle
Fan speed250–1800 ± 10% RPM
Fan airflow71.93 CFM
Size & build
Radiator size456 × 138.5 × 27 mm
Fan size3 Fan Slots (140 mm)
Pump dimensions85.5 × 80.9 × 65.9 mm
Radiator materialAluminum (AL3003)
Fan dimensions140 × 140 × 30 mm
Tube sizeTubing Length 400 mm ± 10 mm
Tubing outside diameter 12.5 mm OD
Tubing materialCIIR rubber with black braided sleeves
Shipping weight3.36 kg
Package size508 × 203 × 157 mm
Compatibility
Compatible socketsIntel Socket LGA 115x, 1200, 1700, 1851
AMD Socket AM4, AM5
Environment & compliance
Pump noise level20 dBA
Fan noise level29.5 dBA
More details
Pump bearingCeramic bearing
LED lightingARGB

Other versions of this model

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Questions about this item

How loud are the pump and fans when the Phanteks Glacier One 420D30 X2 runs at full load all day?

The pump operates at 20 dBA and each D30 fan reaches 29.5 dBA at maximum speed, so combined noise stays low even during sustained heavy loads.

Which CPU sockets and mounting hardware must already be present for this cooler to install?

It includes brackets for Intel LGA 115x, 1200, 1700, 1851 and AMD AM4, AM5, so a compatible motherboard with one of those sockets is all that is required.

Will the 420 mm radiator and 140 mm fans fit alongside tall RAM or large VRM heatsinks on an older board?

The pump block is designed for maximum clearance and the integrated VRM fan adds airflow around the socket area, helping it work with taller memory modules and bulky heatsinks.

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