XtremeComputing has reviewed the Akasa AK975cu & AK965 775 coolers
The cooler has two heat-pipes which feed into the heatsink fins at the top. What is unusual for a cooler with heat-pipes is that the heatsink also makes contact with the base copper plate. I suspect that the connected heat-sink gives it slightly better cooling capabilities than if it was suspended with only the two heat-pipes .Akasa AK975cu & AK965 775 coolers reviewed