Coolermaster Seidon 240V Version 3 All In One AIO Hydro Cooler

Cooler Master Seidon 240V V3 AIO Water Cooling Kit, Quiet, Compact 240mm PWM Fan/Radiator, For Intel & AMD CPUs

Cooler Master
Scan code: LN75392 Manufacturer code: RL-S24V-24PK-R1 Request call
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Free Delivery Delivery options Free By DPD On 23rd Nov 2017 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
Frequently Bought Together
Product Overview The Seidon 240V is the latest AIO watercooler that boasts an excellent value for performance. The compact 240mm radiator fits in virtually every case. Thanks to dual Silencio fans designed for silence, Seidon can unleash a powerful cooling storm at your command and keep it silent. Durable FEP Tubing provides the advantages of nearly no moisture absorption, high thermal stability and high pressure tolerance which all contribute to a long operating life.

• Factory filled with coolant then sealed and pressure tested - requires zero maintenance for years.
• Precision machined Microchannels maximize the water contact surface too quickly dissipate heat.
• The best optimization pump and water block guarantees the best water flow and system performance.
• Dual Silencio fans to increase the performance.
• The FEP tubing allows maximum, unrestricted waterflow and decreased evaporation rate for greater durability.
• Elegant Blue LED illumination on the top of water block. 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 240mm radiator provides superior heat dissipation and fits in almost any case internally and externally.
• Dual 120mm Silencio fans with a wide RPM range to dissipate the heat silently.
• Applied micro channel technology for the best cooling performance.
• Blue LED indicator lights up when it is operating.
Cooler Specifications
Edition Seidon 240V
Cooler Form Factor 240mm All-In-One Hydro Cooler
Cooler Features
  • Aluminium Fins
  • Copper Base
Socket Compatibility
  • 1150
  • 1151
  • 1155
  • 1156
  • 1366
  • 2011
  • 2011-3
  • 2066
  • 775
  • AM2
  • AM2+
  • AM3
  • AM3+
  • FM1
  • FM2
  • FM2+
Max. Recommended TDP  
Max. Cooling Capacity  
Fan Specifications
Included Fan Configuaration 2 x 120mm
Fan Edition  
PWM Fan Yes
Fan Bearing Type Loop Dynamic Bearing
Fan Colour Black
LED Lighting Colour  
Fan Connectors 1 x 4-pin
Approx Fan Speed 800 - 2400 rpm
Adjustable Fan Speed Controller Yes
Fan Airflow 76 CFM
Air Pressure 4.8 mm H2O
Sound Level (dB) 6.5 - 27 dB
Sound Level (Sone)  
Fan Material Plastic
Heatsink Material Aluminium
Included TIM (Thermal Interface Material)  
Dimensions & Weight
Fan Dimensions 120 x 120 x 25 mm
Heatsink Dimensions 273 x 120 x 27 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

24 months
Return to base
DOA Period:
28 days
RTB Period:
24 months
Manufacturer Contact Details
0871 472 4747
Customers also bought
Cooler Master Seidon 240V V3 AIO Water Cooling Kit, Quiet, Compact 240mm PWM Fan/Radiator, For Intel & AMD CPUs is rated 4.5 out of 5 by 8.
Rated 5 out of 5 by from Result Going from a Arctic air cooler to this my Temps haven't gone above 31 whereas before 45-50 only downside was having to modify my case to fit on top as I didn't realise the size doesn't necessarily mean room around for clearance allow at least a extra 20mm all round. For money and results excellent
Date published: 2017-11-11
Rated 5 out of 5 by from Cheap and works very good. Upgrading from hyper evo 212 to this is night and day. Before my i5 8600k @4.4GHz would run at 75-80 degrees under full load, now it reaches maximum 50-55 degrees under full load. Idle temps range from 25-30 degrees. Very satisfied with the cooling.
Date published: 2017-11-07
Rated 5 out of 5 by from Great value and performance for the money Quiet, easy to put together and half the price of a corsair h100i (my previous cooler) but with better cooling the only problem I have is the hard tubing but that's only a little gripe
Date published: 2017-09-11
Rated 5 out of 5 by from Quality piece of kit Cooled down the am3+ considerably from the stock cooler, and almost silent in comparison
Date published: 2017-09-07
Rated 2 out of 5 by from Does not come with AM4 bracket This cooler is not AM4 compatible out the box. I have been told by cooler master that it will be up to 7 weeks until they have more brackets in stock, and even then I can't be guaranteed one. Rather spend a bit extra and go for one that comes AM4 ready.
Date published: 2017-08-24
Rated 5 out of 5 by from BRILLIANT AIO COOLER!! I had bought this thinking I was going to have a leak or whatever due to how cheap it was but I was totally wrong. For ages I have been on a really cheap Arctic CPU cooler which are the ones you can get for £5 on eBay and my CPU was burning at 60 degrees celsius on Idle which is terrible. This Cooler Master AIO Cooler I must say has done the job beyond what I expected. Before I say anything about performance and installation. To clearly note, the tubing and fittings are sturdy. It will take immense pressure on the fittings to even get it to leak. So do not worry about leaks. Installation was really easy and I managed to do it without reading the manual as such. After installation the CPU water pump should be set to "Turbo" mode on the BIOS under CPU_Fan and that helped the performance by alot. Performance on this is a beauty, near silent fans in idle but they do sound louder when you put your CPU under load but its not a huge difference. I managed to cool my CPU down from 60 degrees to 30-40 degrees celcius which is a massive difference and leaves headroom for overclocking. Under intensive work loads I don't get temps above 79 degrees celcius. The Verdict: ITS WORTH EVERY PENNY. I have not seen a 240mm Water cooler in this price range. It does come with a PWM fan splitter which can fit on the board to plug you in the two fans that comes with this product and it also comes with thermal paste but if you got something better than the one it comes with then you will not be needing it but if you are using the thermal paste it comes with just a slight warning, Its a bit runny. I have never seen thermal paste run down my CPU that quick before putting on the water block. If you had that bad then get a pop sickle stick or whatever and gently spread it across the CPU but make sure you have a little lump in the middle so the heat can transfer better. Go on... Buy it... You know you want to ;)
Date published: 2017-07-14
Rated 4 out of 5 by from Super Cool Unit was rhombus slightly, so took some persuasion to fit fans. But my p.c is very cool and silent now, playing bf1 and temps are in the 40'c range.
Date published: 2017-03-21
Rated 5 out of 5 by from Great water cooler for the price.... I7 4790k at 4.5 ghz 77 full load not bad at all saying my case hasnt got the best airflow and a n amd r9 290 in it generating enuff heat to warm a small house ...
Date published: 2017-02-09
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Questions & Answers

Will this fit a FM2+ motherboard

Asked by: glxcelementzz
Hello there, on the packaging it says it supports AM3+, AM3, AM2+, AM2, FM2+, FM2 and FM1 sockets. So yes it will support FM2+ :) I have not personally tested it but if it says it can on the packaging then thats a good pointer so far :) I hope this is suitable information that you wanted. If you need to know more then I suggest contacting customer services :)
Answered by: GamerJames
Date published: 2017-09-16

Will a Coolermaster Seidon 240V Version 3 All In One AIO Hydro Cooler fit in a NZXT Phantom 530 case

I want to know if the Coolermaster Seidon 240V Version 3 All In One AIO Hydro Cooler will fit in an NZXT Phantom 530 case. I have checked NZXT's site and cant seem to find any info as to the compatibility of this cooler.
Asked by: WH81
Hello there, I have had a look at pictures online of the NZXT Phantom 530 and some pictures display that yes indeed you can fit this radiator inside your case. It will fit at the top of the case. I do not know if the NZXT Phantom 530 comes with 2 pre installed fans on the top but once you have removed them then you have more than enough clearance to fit the radiator with the 2 fans that this product comes with. I have attached a picture that I have found from Google which shows you a white radiator placed on the top inside of the case. This AIO cooler I have installed into a NZXT S340 Razer Limited edition case with no worries and its much smaller in comparison to the NZXT Phantom 530. *note the picture is from Overclockers UK without the watermark but the picture should help you to where the radiator can be installed*
Answered by: GamerJames
Date published: 2017-09-16


Hi, will fit on am4 socket.
Asked by: Alexa
Hello, You would need to get a compatibility kit from Cooler Master for this to work with the AM4 Socket. In terms of AIO coolers, you would need the MasterLiquid series from this brand to get compatibility out of the box. Regards,
Answered by: MichaelScan
Date published: 2017-09-21
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Coolermaster Seidon 240V Version 3 All In One AIO Hydro Cooler
Coolermaster Seidon 240V Version 3 All In One AIO Hydro Cooler