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Antec Kühler H2O K240 Review

Rating: 8.0.

When building a new system, you have either the choice of the stock Intel or AMD cooler (if provided), or travel down the aftermarket route. This can open up a host of options. Air or liquid, size and price all need to be considered and it can be tricky to peg down the one most suited for your chosen need.

Antec has attempted to address this with a competitively priced 240 mm AIO liquid option – the Kühler H2O K240. This cooler supports a multitude of different CPU sockets but does look less flashy than the host of available RGB LED options. At £59.99 it looks to be offering good value for money, but today we find out if that is the case.


  • Model: K240
  • Radiator Material: Aluminum
  • Radiator Dimensions: 288 × 120 x 27mm
  • Fan Dimensions: 120 x 120 x 25 mm
  • Fan Speed: 900 – 1,800 RPM (PWM) ± 10%
  • Fan Air Flow: 73.31 CFM (Max)
  • Fan Noise Level: 20 – 30 dBA
  • Fan Connector: 4-Pin (PWM)
  • Pump Connector: SATA Power
  • Water Pressure: 1m ± 0.2m
  • Flow Rate: 1.5L/min
  • CPU Block Dimensions: 8 × 100 × 315mm
  • Tubing Dimensions: 8 x 10 x 350mm
  • Intel socket compatibility: Intel LGA 2066, 2011-V3, LGA 2011, LGA 1366, LGA 1156, 1155, 1151, 1150, 775
  • AMD socket compatibility: AMD AM4, AM3+, AM3, AM2+, AM2, FM2+, FM2, FM1

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