Mushkin introduced two triple channel DDR3 kits in its Redline memory series; the "998691" and "998692". The main difference seems to be in the heatspreaders, the latter one has the new Ascend heatspreaders wile the other one has the usual Mushkin heatspreaders.
The Ascent solution features two 123mm x 25mm liquid filled copper vapor chambers encased on the outer dimensions by high conductivity 6063 aluminum alloy.
Both kits offer 6GB, they run at 1600MHz with 6-7-6-18 timings at 1.65V. Mushkin offers a lifetime warranty on these modules.