Will CMD64GX4M4A2666C15 work in 128GB setup on X99 platform?

Hello

I'd like to ask Corsair rep if two of these bundles: CMD64GX4M4A2666C15 will work in 128GB setup on 2666MHz on Asus X99-E WS / USB 3.1 motherboard with i7 5960X CPU. I know that Corsair has single 128GB bundle in their offering that works (not sure if at full speed or not) however right now my regular workloads top up at arround 50GB - I ask because it might increase in the following months and I'd like to have an option to upgrade without completely replacing my memory.

Can Corsair give me a definitive answer on this issue? 128GBs non-ECC are quite fresh topic as at the date of Haswell-E release that was a fantasy for consumer grade CPUs.