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CPU Cooler

Cooler Master Seidon 120V 86.2 CFM Liquid CPU Cooler

( 4.3 Average / 58 Ratings )



Cooler Master


Seidon 120V

Part #


Supported Sockets

AM2, AM2+, AM3, AM3+, FM1, FM2, FM2+, LGA1150, LGA1151, LGA1155, LGA1156, LGA1366, LGA2011, LGA2011-3, LGA2011-3 Narrow, LGA775

Liquid Cooled


Radiator Size


Noise Level

19.0 - 40.0 dbA


2400 RPM

Completed Builds Using This Part

See All Completed Builds


Merchant Base Promo Shipping Tax Availability Total
Micro Center $49.99 In store pick-up only $49.99
NCIX US $59.99 Out of stock $59.99+

Price History (Excluding Tax & Combo Deals) History:


Very underrated product, excellent cooling for the price, I don't know why everyone doesn't just get one of these.

The manuals sucks, but the cooler was doing good job on cooling. I recommend using two fans in a push & pull set up to fully Ultilise the radiator

from completed build Silencio (mATX)

I was determined to try water cooling, and for $30 the Seidon 120V is solid. +1 star for the $20 rebate. I had to apply more thermal paste than I was accustomed, and it took me three attempts to get the block/paste situated properly. I ended up adding a thick line of compound across the CPU rather than a blob. The pump is the only thing I hear at idle CPU load, and the CPU fan becomes audible under increasing load.

from completed build Black Rose

Very good cooler, a little annoying that it doesn't come with it's own software so you have to utilize the fan control software of your motherboard or elsewhere. Good packaging however, good product, keeps my CPU cool even when overclocked.

from completed build Red Panther

Very nice little cooler. I have it set up in push/pull. Keeps my CPU cool, not much else to say.

from completed build THE KILLER

I dont know why anybody wont buy one of this...but i can asure you that the seidon 120V is the best...never had a heat problem with the 125W of the FX-8350 and the temp never exceded the 61C i swear. this item is under-rated.... its not worth to buy a NZXT kraken x61....it will do the same as the seidon. THIS IS FOR SURE

Decent for the price, but to be honest I think a Hyper 212 Evo will perform just as well or better. The stock fan is loud as you know what! I'm upgrading my cooler soon trust that.

from completed build AMD 860K w/ R9 380

a little tight for this case. However, I currently have the CPU at 4.1gHz. Temp is 28 Degrees C. (Although Case is open)

The classic hyper 212 would not fit in the Cosmos S, so I decided to go with this puppy. Was easy to install and I actually love the way it looks. Keeps the CPU cool and should be suitable for some overclocking.

This CPU Cooler has given me no problems so far, I have my 4690k overclocked to 4.3 GHz and my core temps stay relatively low both while idle and while under stress. I highly recommend it if you're looking for a budget liquid cooling solution.