This is #11 in my series of triple radiators the EK-Coolstream RAD XT (360). This is one of two of EK’s 120mm radiator line up which includes the more value friendly XT and premium XTX. The two differ in thickness, materials, and features where the XT is constructed of brass tubes and 46mm thickness and the XTX is constructed of copper tubes and 64mm in thickness. The XTX also includes more ports and a air bleed where the XT is more value oriented with the standard 2 ports. Here we are looking at the more value oriented, slimmer 46mm, brass tube XT model from EK.
A special thanks to EK for providing the review sample:
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Specifications:
http://www.ekwaterblocks.com/index.php?page=radiators
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http://www.ekwaterblocks.com/shop/ek-coolstream-rad-xt-360.html
EK-CoolStream-RAD XT 120mm series
Finally EK is ready to offer you radiators designed for hardest enthusiasts. Radiator is optimized for maximum heat dispatching even at lowest fan speeds. Choosing EK-CoolStream RAD XT will give your watercooling system a boost you needed to cool your hot hardware.
Quality at EK level and an optimal price-performance ratio make these EK-CoolStream RAD XT radiators unique. The new radiators feature, besides their great design and high build quality, great cooling performance.
The copper fins are specially designed for Ultra-silent fans (with low Airflow). The parallel coolant channels reduce flow resistance to a minimum. On both sides of the radiator the M3 threads are integrated to allow fan installation on both sides and radiator mounting.The radiator has integrated G1/4″ threads, allowing installation of virtually all common fittings.
Please note: Over-tightening of the screws may damage the radiator. Always take care that the screws do not damage the radiator. Damages of the product because of improper use are not covered by the warranty!
Technical details:
Material:
- Copper fins
- Brass chambers
Dimensions (LxWxH): 398x123x47mm
Connection threads: G1/4″
Weight: Approx. 1350g
Fan installation: 12 x M3 threads on both sides each (for 3x120mm fan each)
Pressure tested: 1barEnclosed:
1x EK-CoolStream RAD XT (360) radiator
12x M3 x 30mm DIN965 screws
12x M3 x 35mm DIN965 screwsImportant: The included screws may be too long for some applications. Always be sure to screw them in only so far that the radiator is not damaged.
Dimensional Drawing:
http://www.ekwaterblocks.com/shop/EK-PSS/EK-PSS-3831109860021.pdf
Installation Manual:
http://www.ekwaterblocks.com/shop/EK-IM/EK-IM-3831109860021.pdf
Of particular interest is the 47mm thickness being another one of the “In-between 30 and 60mm” thickness while retaining a more narrow 123mm width. The tubes are your more value oriented brass material and the screws are smaller but common M3.





The bottom five features are what really makes this pump interesting for me, since it does much more than pump. These features basically makes it an advance fan controller. You can hook up a flow meter, fans, external temperature sensor, and monitor/control it all including the internal water temp sensor using software. That’s considerably more “Smart” that pretty much any other pump I’ve used.
I’m impressed by the foam protection here, that’s probably the best protection I’ve seen on any pump reviewed before.
The USB cable on the upper left, the RPM monitor cable upper right, PSU jumper lower right, and aeration jumper lower left.













