The Scythe Orochi is the largest heatsink ever to pass through the Frostytech Labs. It's big: 155mm tall, 120mm wide and a staggering 194mm long. The Orochi contains 10 heatpipes, weighs over a kilo and from afar it looks like an industrial cooling unit. This Intel and AMD heatsink is so large, it should almost require slowly blinking red aircraft anti-collision lights... okay, that's an exaggeration. Scythe made the Orochi heatsink large for a reason, so that it can be paired with a slowly rotating ultra quiet fan to gently move air through the massive heatsinks' fins, or even used passively.

http://www.frostytech.com/articlevie...articleID=2258