I just looked at it more closely, and really really can't understand their design.
It LOOKS like a single tower with large fins, which when paired with front and back fans wouldn't be so bad. BUT they left a damn gap in the middle of the fins... One in which you cannot fit a third fan. Sooooo pretty much completely messed up air flow in the middle of the heatsink. It's a completely different design, which I can't possibly see work.
See, the reason why dual tower heatsinks put a fan between them is because air didn't travel at the exact same speed at every possible point off the back of a fan. This also means small differences in static pressure as well. But since most (read: well-made) dual tower heatsinks use a middle fan, those small variances are a non issue. The air can enter at any speed, at any point, and get evenly pushed out the back thanks to they middle fan.
But the Corsair just leaves a gap... Those little differences in air speed and pressure will likely cause a complete mess in the middle. The airflow will be in chaos. And even if Corsair had the second/exhaust fan running *much* faster than the front fan to try and mitigate this issue, it still won't be anywhere as effective as a single tower with large fins or a dual tower with a middle fan.
... This heatsink is the TLJ of air-cooling... All looks, no substance, bad design choices, and only gets worse upon further scrutiny
