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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.

  • TypeAIO
  • Block CompatibilityIntel Socket LGA 115x, 1200, 1700, 1851 AMD Socket AM4, AM5
  • Pump Speed3100 ± 10% RPM with 100% duty cycle
  • Pump Dim.85.5 x 80.9 x 65.9 mm
  • Pump BearingCeramic bearing
  • Pump Noise20 dBA

Fan Size 3 Fan Slots (140mm)

Struck-through versions exist but are not stocked here.

Color White

Option 420D30 X2

Struck-through versions exist but are not stocked here.

  • 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.

Highlights

  • 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

Specifications

BrandPhanteks
TypeAIO
Block CompatibilityIntel Socket LGA 115x, 1200, 1700, 1851
AMD Socket AM4, AM5
Pump Speed3100 ± 10% RPM with 100% duty cycle
Pump Dim.85.5 x 80.9 x 65.9 mm
Pump BearingCeramic bearing
Pump Noise20 dBA
Radiator Size456 x 138.5 x 27mm
Radiator MaterialAluminum (AL3003)
Fan Size3 Fan Slots (140 mm)
Fan Dim.140 x 140 x 30mm
Fan RPM250 - 1800 ± 10% RPM
Fan Air Flow71.93 CFM
Fan Noise29.5 dBA
ColorWhite
LED ColorARGB
Tube Dim.Tubing Length 400mm ± 10mm
Tubing outside diameter 12.5 mm OD
Tube MaterialCIIR rubber with black braided sleeves
Shipping weight3.36 kg
Package size508 × 203 × 157 mm

Other versions of this model

3 more in the same range

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

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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