The Dynatron R5 2U Server Active CPU Cooler is designed for Intel Sandy Bridge EP/EX Processors up to 150 Watts. An H.C.C. (Heatpipes Contact CPU) copper base works in tandem with aluminum fins with 6mm heatpipes embedded to quickly transfer the heat from CPU while a 60mm dual-ball bearing PWM fan delivers quiet, efficient airflow for your cooling needs. The standard server board bolt-thru mounting mechanism and pre-applied thermal grease make this cooler easy to install as well.
Intelligent H.C.CThe Dynatron R5 2U Server Active CPU Cooler features a copper base that is in direct contact with the CPU to enhance heat conduction.
150-watt Cooling ColutionFour 6mm heatpipes integrated with H.C.C (Heatpipes Contact CPU) copper base and high-density aluminum fins, plus an active side 2 ball bearing PWM fan, deliver up to 150 watts of cooling capability for Intel Sandy Bridge EP/EX Processors.
RoHS CompliantThe Dynatron R5 2U Server Active CPU Cooler is fully compliant with RoHS, and is tested for the presence of Lead (Pb), Cadmium (Cd), Mercury (Hg), Hexavalent chromium (Hex-Cr), Polybrominated biphenyls (PBB), and Polybrominated diphenyl ethers (PBDE). You can enjoy the computing cooling effects with confidence in knowing no hazardous materials are included in the cooler.
Energy-Saving PWMThe PWM function automatically adjusts fan speeds according to the CPU temperature for efficient cooling, minimized fan noise as well as energy saving.
Pros: Fits in 2U form factor Excellent flow rate and heat dispersal for footprint
Cons: None, when you consider its application
Overall Review: The other reviewer missed the point of this cooler - this is one of the ONLY 2011 square coolers that will fit in a 2U rackmount case. Does it offer the same temps and acoustics of a watercooler the size of a cantelope? No. But at 8,000 RPM it kept a hex core 3930K at 4.5GHz running prime95 at about 70C stable. Not bad for a little 2U cooler.