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CPU Cooler

Cooler Master Seidon 120M 86.2 CFM Liquid CPU Cooler

( 4.6 Average / 39 Ratings )



Cooler Master


Seidon 120M

Part #


Supported Sockets

AM2, AM2+, AM3, AM3+, FM1, FM2, FM2+, LGA1150, LGA1155, LGA1156, LGA1366, LGA2011, LGA2011-3, LGA775

Liquid Cooled


Radiator Size


Noise Level

19.0 - 40.0 dbA


600 - 2400 RPM


Merchant Base Promo Shipping Tax Availability Total
Newegg $64.99 -$25.00 +FREE s/h In stock $39.99
$25.00 mail-in rebate
SuperBiiz $64.99 $64.99+
NCIX US $69.98 In stock $69.98+
Amazon $84.99 Free two-day shipping with Amazon Prime In stock $84.99
( 27 new from $65.00. Last updated 1 minute ago. )
* Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.

Price History (Excluding Tax & Combo Deals) History:


from completed build Machination

For an entry-level AIO cooler, it worked perfectly for my rig. Quickly brings down my CPU temp and you can barely hear it unless it kicks to 75~100% RPM.

from completed build Ein the DataDog

A solid cooler from top to bottom, does as advertised and keeps my CPU very cool! I was observing a 35° Celsius idle temperature on my i5-4690K, and that's in a particularly warm setting in my bedroom. It also remained relatively silent, offering very little sound though that can be attributed to proper casing as well.

My only complaint is Cooler Master's negligence on providing courtesy in the package; you should not try to install this without a video handy! In addition, the screws they ship with the cooler to fasten the fan and radiator together are fairly short. In fact, so short that I had to resort to taking a grinder and shaving a good 2mm off the surface of the fan. This did not in any way damage the cooling system altogether, but it was a task I didn't expect to have to go through, especially if the screws could be just a tad bit longer, or if the fans themselves were thinner.

Overall, this is a solid cooler and my gripes about it are highly subjective. At its price point and performance, a must have for any CPU to be cool.