So we established that Cogage is a daughter brand of Thermalright and that the Arrow looks very similar to the Thermalright IFX-14. The heat-pipes pass through two independent aluminum fin blocks (the two towers). Each of these is capable of holding 120 mm fans on either sides, including space to hold a 140 mm fan in the central gap.

Specifications and Features -

• 4 X 8mm large sintered heat-pipes efficiently remove excessive heat away from the CPU, allowing for great Overclocking potential
• Nickel Plated Base and Heatpipes, increase the longevity of the heatsink by slowing oxidation and deterioration rates… maintained performance over time
• Double fin stack design, provides each tower with an impressive 147 x 103mm of surface area for heat dissipation
• Special Arrow fin design, which allows cool air to pass through while rapidly moving heat away and maintaining a quiet operating volume
• Soldered Heat-pipes, Fins and Copper Base, ensure all components maintain the higest of Thermal Efficiency
• Support for Multiple-Platforms: Intel Socket 1366/1156/775 (AMD Socket AM2/AM2+/AM3 optional)
• Includes a Quiet 120 x 25mm PWN controlled fan
• Capable of supporting up to three fans for the Ultimate Enthusiast (38mm will fit between the two towers)

The cooler Dimensions are Length 147mm x Width 123mm x Height 160mm. It's big alright, and as such it weighs in as well, at a cooler weigh of: 825 grams and that's excluding Retention Hardware and Fan.

The heatpipe design is comprise out of four thick (8mm) heatpipes bent into a U shape leading through thee two aluminum fin based towers. The CPU block is made out of pure copper with nickel coating.