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Fans & PC Cooling > 
Water / Liquid Cooling > 
Cooler Master > 
Item#: N82E16835103181
Cooler Master Seidon 240M – All-In-One CPU Liquid Water Cooling System with 240mm Radiator and 2 Fans
  • Zero Maintenance design
  • Durable and Powerful Water Pump
  • Waterflow FEP Tubing
  • Dual 120mm Fans (High Air Pressure, Low Noise Output)
  • $99.99
  • $89.99
  • Save: $10.00 (10%)
  • $64.99 after $25.00 rebate card
  • Free Shipping (restrictions apply)


It works


It's been almost 4 months and I still haven't received my rebate from this company. That's the only reason I went with this over the competetion. I guess I should've bought the other. Also, I purchased a Cooler Master case, being from the same company, you'd think the items would mate up. They didn't, I had to rig something up to make them fit. Also, the pump is really annoying, you can hear it constantly.

Manufacturer Response:

Hello Anonymous,

My name is Robert and I can help follow up with this issue. I apologize that you are having problems with the installation and rebate process. If you can please contact us by phone (888-624-5099) or live chat (link below). We can help follow up and make sure you recieve your rebate. Secondly, depending on the cases, not all of our cases support 240mm fans. This is good to double check the information on Newegg and our own company site. (Link also below.) We list entensive details for our cases on which coolers and fans they support. When you have a chance, please contact us and we'll do our best to help.


Robert N.
CM USA Support

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  • William N.
  • Verified Owner
  • Owned For: 1 month to 1 year

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Computer Hardware > 
Fans & PC Cooling > 
Water / Liquid Cooling > 
Cooler Master > 
Item#: N82E16835103181
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