The Fans:
You'll notice that the TMD fans are a lot larger than what you would normally expect a fan to look like. This is over course because the motor is in the outer ring of the metal frame, and not at the center of the impeller. This enables the fan to deliver a more consistent stream of exhaust air to the many pins of the MCX4000. The fan supports RPM monitoring and connects to the motherboard with a standard 3-pin connector. Noise is not really an issue because the sound is very low-pitched.

Bare Heatsink:
With 494 aluminum pins each measuring about 2mm in diameter, and spaced 1.5mm apart the MCX4000 does look menacing towards heat. The pins cover almost the entire surface area, leaving only small sections at each of the four corners for the mounting points.

Side B:
Swiftech always get points in our book for details, and with four rubber grommets under the TMD fan, that is a detail I'd best most manufacturers would forget. The rubber helps stop any vibrations from the fan and gives it a little bit of clearance over the tops of the pins. The pins by the way are 30mm in height and the copper base measures 7mm at the edges. The center portion of the base rises up another 2mm leaving the actual base height at 9mm - which is very hefty.