Corsair Vengeance LPX 32GB DDR4 2666MHz C16 Memory Kit Review
 

Supporting the latest XMP 2.0 standard, this kit was designed to be fully compatible with the Intel X99 and 100 Series systems, while the 16GB modules are running at 2666MHz 16-18-18-35, while keeping low voltage of 1.2V. The LPX code name suggests that we are dealing with a low-profile kit, which assures good clearance with all large CPU heatsinks. As we have seen in our tests, the kit can also run at higher speeds than the rated one so we have succeeded to reach 2933MHz while keeping the stock timings, but the voltage needed a small bump at 1.35V.

http://www.madshrimps.be/articles/article/1000781/