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ARCTIC Liquid Freezer III Pro 240 (ACFRE00178A)

A short radiator length does not make this a thin 240 mm AIO.

Check with my buildRead the specifications ↓
The decision

The Liquid Freezer III Pro 240 is worth considering where a 360 mm mount is unavailable, provided the enclosure accepts its thicker assembly. The 38 mm radiator and required fan space are the key tradeoff. A case advertising “240 mm support” still needs a check around RAM, motherboard heatsinks and tube fittings.

Consider it when

  • A checked 240 mm mounting position with at least the specified assembly clearance.
  • AM4, AM5 or current supported Intel systems with a verified pump-area layout.

Look again when

  • A shallow roof mount designed around a thinner radiator and fan stack.
  • An older Intel socket whose separate mounting-kit support has not been established.

The checks that can change your choice

Reserve the 63 mm installation envelope

The verified assembly requirement is 63 mm, with fittings and tubing assessed separately. Its radiator is 277 mm long despite the 240 mm class name, so inspect the available end-tank space too.

Check the motherboard, not only the socket

Use ARCTIC’s Liquid Freezer III motherboard compatibility guidance. Pump-area parts can meet an M.2 heatsink or other board hardware even when the socket itself is supported.

Published specifications

240 mm AIO; two P12 Pro fans; radiator 277 × 120 × 38 mm; AM4/AM5 and LGA1700/1851.

BrandARCTIC
Exact modelLiquid Freezer III Pro 240 (ACFRE00178A)
Cooler mounting socketsAM5, AM4, LGA1851, LGA1700
Cooler designliquid
Nominal radiator format240 mm
Radiator and fan stack63 mm; compare with the actual mounting position
Radiator width120 mm

Check radiator plus fan assembly clearance, RAM/VRM clearance and motherboard compatibility. Optional older-socket kits are not included in this socket list.

Catalog record checked . Manufacturer specifications. The individual references below show the dates used for these model notes.

A different choice worth checking

ARCTIC Liquid Freezer III Pro 280 (ACFRE00179A)The Liquid Freezer III Pro 280 belongs on the shortlist only when the enclosure supports its full 138 mm width and 65 mm radiator-and-fan stack. Its two 140 mm fans do not make it interchangeable with a 240 mm mount. Confirm the actual roof or front position before selecting the cooler.Read this model’s tradeoffs ↗CORSAIR NAUTILUS 360 RS (CW-9060089-WW)The NAUTILUS 360 RS is a useful comparison when you want a liquid cooler without choosing it for an LCD or a separate software-controlled display. Its three RS120 fans use motherboard PWM control. The practical decision is whether a verified 360 mm position and the required header routing suit your build.Read this model’s tradeoffs ↗

These alternatives address related choices. Recheck their platform, connections and fit before treating one as a replacement.

Follow the check that matters to your build

Sources and review notes

RigAtlas connects manufacturer specifications to component choices. This page is document-based analysis; it does not claim a hands-on test or a current store offer.

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