Coolermaster Seidon 120V V2 All In One Hydro Cooler

Cooler Master Seidon 120V Version 2.0 Water Cooling Kit Quiet with Compact 120mm PWM Radiator for Intel & AMD CPU's

Cooler Master
Scan code: LN61965 Manufacturer code: RL-S12V-24PK-R2 Request call
£44.99Item currently awaiting an ETA
Pre order
Spend over £225 and Buy Now, Pay Later or spread the cost of your finance over 24-48 months with a 10% deposit.
High End
Delivery options £5.48 By DPD DPD Delivered to your specified address. Receive SMS with one-hour delivery window. £4.79 Collect from local shops UPS and DPD Pickup Collect your parcel from your newsagents, petrol stations and convenience stores. Free Collect Instore Q-Collect Place your order online and collect from our Bolton store with Q-Collect. Weekend, timed and European delivery options are available at checkout ScanProtect protection ScanProtect Protect against installation damage for 28 days.More
Product Overview Factory filled with coolant
then sealed and pressure tested - requires zero maintenance for years.

The best optimization pump and water block
guarantees the best water flow and system performance.

120mm Silencio FP fan
with strong air pressure providing lower noise and better performance.

Precision machined Microchannels
maximize the water contact surface to quickly dissipate heat. Features • Factory filled with coolant, then sealed and pressure tested - requires zero maintenance for years.
• Highly optimized pump and water block guarantees the best water flow and system performance.
• Specially designed 120mm radiator provides superior heat dissipation and fits in almost any case internally and externally.
• 120mm Silencio FP fan with strong air pressure providing lower noise and better performance.
Cooler Specifications
Edition Seidon
Cooler Form Factor 120mm All-In-One Hydro Cooler
Heatpipes 1
Cooler Features
  • Aluminium Heatpipe Caps
  • Vibration-Isolating Elements
Socket Compatibility
  • 1150
  • 1151
  • 1155
  • 1156
  • 1366
  • 775
  • AM2
  • AM3
  • AM3+
  • FM1
  • FM2
  • FM2+
Max. Cooling Capacity  
Fan Specifications
Included Fan Configuaration 1 x 120mm
Fan Edition  
PWM Fan No
Fan Bearing Type Enhanced Hyper-Flow Bearing (EHFB)
Fan Colour Black
LED Lighting Colour Blue
Fan Connectors 1 x 4-pin
Approx Fan Speed 800 - 2400 rpm
Adjustable Fan Speed Controller No
Fan Airflow 16.5 - 76 CFM
Air Pressure 0.48-4.8 mmH2O ± 10% mm H2O
Sound Level (dB) 6.5 - 27 dB
Sound Level (Sone)  
Fan Material Aluminium/ Plastic
Heatsink Material Aluminium / Nickel Plated / Copper
Dimensions & Weight
Fan Dimensions 120 x 120 x 25 mm
Heatsink Dimensions 62 x 62 x 36.4 mm (WxHxD)
Total Dimensions  

Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

12 months
Return to base
DOA Period:
28 days
RTB Period:
12 months
Manufacturer Contact Details

Additional Notes:
All products from Cooler Master at least carry 1 year warranty from the date of purchase, with the exception of power supply units which carry a 2-5year warranty. If no proof of purchase can be presented upon request, Cooler Master cannot be held responsible for warranty service.

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Cooler Master Seidon 120V Version 2.0 Water Cooling Kit Quiet with Compact 120mm PWM Radiator for Intel & AMD CPU's is rated 4.7 out of 5 by 31.
Rated 5 out of 5 by from Keeping cool!! Brilliant product!! Very good value!! Will definatley purchase again! Always use this company for PC products simply because they are great products they supply and for great value!
Date published: 2016-11-20
Rated 5 out of 5 by from First class My existing system failed on me. less than 48 hours it was up and running. Very easy to install with diagrams and good text. Works better than my £120 old system IE keeps CPU much cooler. Checked with CoreTemp. I can recommend this cooling system. A happy Scan user.
Date published: 2016-10-28
Rated 5 out of 5 by from cool easy to install for a noob like me , my temps where up at 70oC+ on full load on a fan build .Now with this i idle around about 30oC and under full load only just goes above 50oC
Date published: 2016-10-08
Rated 5 out of 5 by from Highly recommend! Fantastic build quality and performance on I5 3570k @ 4.5!
Date published: 2016-10-06
Rated 2 out of 5 by from DO NOT BUY CPU: I7 6700K @1.280v 4.6ghz I thought after seeing some positive reviews that this product would be a viable option for someone looking into doing some water cooling. But after using it for 2 days i realised that you can't really spend less than £60 on an AIO and here's why. Pros: The fan included (cooler master silencio 2400rpm version) is the quietest fan i've ever used by miles, even beating a lot of noctua's line up in terms of noise. They provide two sets of screws so a push pull config can be used. Cons: Pump is really loud compared to the rest of the AIO's out there. Thermals are 12c hotter than a hyper 212 evo air cooler (with pump at full speed). With pump at 35% it is silent but after playing GTAV for 5 minutes my computer shut down due to thermals. Surprisingly hard to install due to stiff pump cables. Conclusion: If you're looking into getting an AIO i would recommend something by NZXT or a high end corsair product e.g. spend over £80 atleast. Be in mind that water-cooling is going to be noisy no matter what you do so if you're going for a silent build then just go for an air cooler. At this price you can get a noctua d-14s, which will destroy most mid range water coolers in terms of temps.
Date published: 2016-09-07
Rated 5 out of 5 by from PC SAVER! My old CPU cooler was an AMD stock fan for an AMD FX 4300, it did the job but it start having issues; Blue screens and a grinding noise could be heard from within the pc, it needed fixing ASAP and this part did the trick! :) Once I replaced it with liquid cooling the temps of my PC have gone down dramatically and it never reaches 50 oC even under full load! This is the by far the best valued liquid CPU cooler, it would work for an Intel build but i'd recommend the corsair 240mm liquid cooling heat sink if you were looking to do some VERY high end upgrades. This liquid cooler is more suited for mid range intel/amd builds, but for my requirements it's just what I wanted.
Date published: 2016-07-06
Rated 5 out of 5 by from Cooler Master Water cooler Excellent piece of kit for the price. Very easy to fit and whisper quiet.
Date published: 2016-06-21
Rated 5 out of 5 by from Very quick and easy to install I was very surprised at the ease of installation and once installed the effect was really noticeable. It's allowed me to over clock my i5 quite happily and eliminated what little noise from the pc that there was. Delivery was spot on. The courier could not find my door, and called immediately. (No couriers find my front door as it's wrong on google maps!) Cheers!
Date published: 2016-06-20
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Questions & Answers

Water cooler for skt 1151 and Geforce GTX980

I am looking to water cool my cpu AND my gpu. Do I need to buy 2 seperate coolers or do they do a combined one for CPU and Graphics card please?
Asked by: AWKS
If you're buying an AIO then yes you will need to buy two separate coolers as there is only on cold plate. However, if you're going with a self built water cooling solution then no you can route everything to one radiator.
Answered by: scorelesspigeon
Date published: 2016-11-13

Does this come with thermal paste?

I am buying this to water cool my current pc but I don't have any thermal paste does it come with this cooler
Asked by: Martial
Hello, Yes this comes with a small tube of thermal paste from Cooler Master. Regards,
Answered by: LizN
Date published: 2017-01-25
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Coolermaster Seidon 120V V2 All In One Hydro Cooler
Coolermaster Seidon 120V V2 All In One Hydro Cooler