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White 240 mm AIO liquid cooler with infinity mirror pump cap and two white 120 mm ARGB fans

Phanteks

Phanteks Glacier One 240 M25 A-RGB AIO Liquid Cooler White

SKU CH-D15D-E3YKN

A 240 mm all-in-one liquid CPU cooler with an infinity-mirror pump cap, addressable RGB lighting and two 120 mm PWM fans rated to 2000 RPM and 35.7 dBA

  • Radiator size276 × 120 × 27 mm
  • Fan size2 Fan Slots (120 mm)
  • AMD socket supportAMD AM4, AM5(*Need to use the original backplane of the moth
  • Intel socket supportIntel LGA 115x, 2011, 2011-3, 2066, 1200, 1700
  • Cooling block materialCopper & Acrylic
  • Radiator materialAluminum

Series GLACIER ONE 240

Fan Size 2 Fan Slots (120mm)

Color White

  • 240 mm radiator fits compact builds
  • Infinity mirror pump cap adds ARGB style
  • M25 120 mm PWM fans reach 2000 RPM for strong airflow
  • 7 dBA noise keeps system quiet under load
  • Pre-filled loop with braided tubing installs in minutes

Infinity mirror pump design

The Phanteks Glacier One 240 M25 A-RGB is a pre-filled all-in-one liquid CPU cooler with a 276 mm radiator and two 120 mm PWM fans. It supports Intel LGA 115x, 1200, 1700, 2011, 2011-3 and 2066 sockets as well as AMD AM4 and AM5 platforms using the original motherboard backplane. The white finish includes addressable RGB lighting on the pump cap and fans for coordinated illumination.

Sustained thermal performance

The M25 fans operate between 500 and 2000 RPM with a 10 percent tolerance, delivering 84.26 CFM of airflow at a maximum noise level of 35.7 dBA. Pressure-optimised blades and PWM control allow the pump and fans to maintain consistent cooling under continuous load while reinforced braided tubing ensures reliable fluid circulation over extended sessions.

Upgrade considerations

This 240 mm cooler replaces stock air coolers or smaller closed-loop units when lower temperatures and reduced acoustic output are required for modern mainstream sockets. Builders needing greater radiator surface area for high-core-count processors or compact cases without 276 mm mounting clearance should evaluate larger 280 mm or 360 mm alternatives instead.

How it compares

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

Price $165.99
Pricier than about 84% of the 1,190 comparable items (median $71.99).

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Specifications

Product
Brand namePhanteks
Product lineGLACIER ONE 240
Model nameM25-WT
Product typeLiquid Cooling System
Product colorWhite
Performance
Fan speed500 to 2000±10% RPM
Fan airflow84.26 CFM
Ports & slots
Fan plug type4 PIN/3 PIN
Size & build
Radiator size276 × 120 × 27 mm
Fan size2 Fan Slots (120 mm)
Cooling block materialCopper & Acrylic
Radiator materialAluminum
Compatibility
AMD socket supportAMD AM4, AM5(*Need to use the original backplane of the motherboard)
Intel socket supportIntel LGA 115x, 2011, 2011-3, 2066, 1200, 1700
Environment & compliance
Fan noise level35.7 dBA
More details
LED lightingARGB

Other versions of this model

2 more in the same range

Questions about this item

How loud are the M25 120 mm fans at full speed?

The two M25 PWM fans reach 35.7 dBA at 2000 RPM, moving 84.26 CFM each while keeping noise low during all-day loads.

Does the cooler include mounting hardware for an AM5 motherboard?

Yes, AM5 is supported but you must reuse the original motherboard backplate; all other brackets for Intel LGA 1700, 1200, 2066, 2011-3, 2011 and 115x are in the box.

Will the 276 × 120 × 27 mm radiator fit in a case that only supports 240 mm AIOs?

The radiator matches the standard 240 mm form factor, so any chassis listed for 240 mm radiator clearance will accommodate it.

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