3D Game Man posted a review on the OCZ DDR2 PC2-6400 Reaper Memory

Much of the memory on the market is fairly standard, both in the looks and performance department. The OCZ DDR2 PC2-6400 Reaper Memory certainly stands alone with its heatpipe design. This design ensures the memory remains cool and gives more headroom for overclocking. While heatpipes are used on CPU coolers/heatsinks and recently on motherboards, this is the first implementation on memory. Thankfully, original thinking is something OCZ has continued to do over the years.

OCZ DDR2 PC2-6400 Reaper Memory Review