The cooler on the Rosewill RCX-Z5 has the 92mm fan. The fan uses four blue LEDs that illuminate more as voltage is ramped to the fan. At full power the fan is very bright, one of the brightest I have seen besides the Cooler Master LED units.
A look from the side shows the heatsink-to-fan mounting mechanism. Rosewill uses an ABS to rubber plug that eliminates audible vibrations found in other products.
The heatpipe design is also visible in this image. Several companies have used a straight U design and in most cases its not as efficient as the elbow method. By adding the curve to the pipe it is possible to add more fluid to the pipe while also making the fluid flow back to the base easier. In a typical computer case the processor is at the top of the case and if the fan is mounted below the CPU then the fluid can return to the CPU base easier.
From the rear you can see the wave design in the fins. This gives the Z5 more surface area allowing the cooler to dissipate more heat at a higher rate.
Rosewill has used a long power wire for their fan. The connector is a 4-pin design that will allow advanced speed control from the motherboard.
The Rosewill RCX-Z5 uses nickel plating over a copper base. The end result is a smooth, mirror like finish that will not tarnish over time. As you can see from the image, the surface is flawless.
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