Pros: Quiet and Cool. This CPU cooler keeps a Ivy Bridge 4930k quite cool at stock clock rates. It is amazingly quiet and fits very well in a 4U rackmount case.

Cons: The fans block two memory slots (one in each bank of four), when it is oriented to blow air from front to back of the case. I didn't need these DIMM slots, but I think I can rotate the cooler and blow air to the side if I need to use these DIMMs in the future.

Overall Review: My motherboard would come up with a processor fan speed warning on boot. But the fans have always been spinning and keeping the processor cool. I think it may be reporting too low of a spin speed when the machine is first turned on. I see this as more of a problem with the motherboard, as it should have a short delay to allow the fans to turn on.

Pros: None

Cons: As of 11/1/08, Vista 64 drivers are unsigned and so will not activate without disabling driver verification. Cables Unlimited claims Vista compatibility, but without signed drivers this statement shouldn't be made. Company offers no phone support.

Overall Review: Save your $$