Called Seidon 120XL and 240M, they will chill most every Intel or AMD CPUCoolers keyed to specific CPU sockets don't seem to be very popular anymore, as even Cooler Master chose to make its latest closed-loop liquid coolers compatible with both Intel and AM processors.
Indeed, the Seidon 120XL and 240M are compatible with every CPU from Intel and Advanced Micro Devices, even socket LGA 2011 and FM2.
They started selling two days prior to the writing of this article (January 22, 2013) at prices that vary by regions.
Speaking of which, not all countries where Cooler Master sells things will get the newcomers at the same time.
That said, the two coolers are actually very similar, save for their radiator size and fan number.
The Seidon 120XL has a 120mm-fan over a more or less square radiator, while the 240M is twice as large, with two fans.
Cooler Master elected to employ integrated pump / waterblock combos and special Micro Channels on both, for maximum heat dissipation. The fans work at 600 to 2400 RPM (rotations per minute).
All in all, the closed-loop coolers sound like the ideal option for owners of high-end PCs that don't want a voluminous water cooling system in their cases.
Granted, the prices will determine if these two are in any way worthy of being called “ideal” in any sense of the word (affordable can be a “stigma” the company says in its press release), but the hardware specs are solid.
Cooler Master has even made sure the pump and radiator are pressure tested, pre-filled and sealed directly from the factory.
There should be no need for maintenance after taking either cooler out of the box, save for the occasional dusting.
For those that like to know the history of objects, Seidon 120XL is a successor to the Seidon 120M released last November, while 240M is the dual-fan version of it.