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Antec Mercury 240 AIO Review

Rating: 6.5.

Given its price of just under £80, Antec’s Mercury 240 liquid cooler is clearly targeting those after some AIO action without breaking the bank. The addition of two LED fans, plus a LED pump, will certainly help its appeal as well. Whether or not the Mercury 240’s performance and noise levels justify the price is another thing, though.

Adding LEDs to liquid coolers has proved popular over the last couple of years and now Antec has joined in the fun with its Mercury 240 liquid cooler. It is not RGB though, but the pump LED can change between blue, green and red depending on the CPU temperature. Intrigued?


  • Socket Compatibility : 1150, 1151, 1155,1156, 1366, 2011, 2011-3, 2066, 775, AM2, AM2+, AM3, AM3, AM4, FM2
  • Included Fan Configuration: 2 x 120mm w/ Blue LEDs
  • PWM Fan: Yes
  • LED Lighting Colour: Blue
  • Approx Fan Speed: 900 ~ 1800 rpm
  • Adjustable Fan Speed Controller: No
  • Fan Airflow: 73.31 CFM
  • Air Pressure: 2.25 mm H2O
  • Sound Level (dB): 30 dB
  • Fan Material: Plastic
  • Heatsink Material: Aluminium
  • Fan Dimensions: 120 x 120 x 25 mm
  • Heatsink Dimensions: 274 x 119 x 27 mm (WxHxD)

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  • Federico Barutto

    How the f!ck (sorry for the bad word, but in this case it’s appropriate) can a 240mm AIO perform so badly?
    Bad pump?
    Bad fans (not a lot of static pressure)?
    Air bubbles inside the rad/tubes/waterblock?

  • Billynolegs

    Few reasons:

    At a guess, it’s the god awful pump. From their site: https://www.antec.com/product.php?id=707259&pid=58&lan=nz

    Water pressure from the pump is less than half a d5 pump, and flow rate is utterly shocking at a mere 3.5L/Min. In comparison, a d5 pump does 1500L/H max, or 25L/min, about 7x the flow. Since it’s not an asetek pump like most AIO competitors, its likely the rad is sourced elsewhere too, so its fin density’s an unknown factor too.

  • Federico Barutto

    I didn’t see the Antec site. The pump situation explains everything

  • Varinder

    Hi all, just received my Antec M360 Mercury 360mm from Scan and I have to say that it is running very well. P95 for over 30 minutes as we speak with the highest core reaching 64 degrees. At idle it hovers around 21 to 26 degrees..british weather near London. System is a 6700K at 4.4Ghz on all cores…I am impressed and looking forward to Kit Guru’s updated revue on this. One problems though… the light does not change colour from Blue..It should go to Orange and the Red when it is at max load but always stays blue on mine…Not sure why. Temps are better than my Corsair H110i GTX especially at load and it is quieter.