Neo Forza MARS 64GB (2x32GB) 4000MHz C19 DDR4 Memory Kit Review
 

The Neo Forza MARS 64GB 4000MHz C19 DDR4 memory kit does really tick all the necessary boxes: a ton of capacity, high frequency, low enough timings to keep a good balance between mobo compatibility and bandwidth but also RGB eye-candy, which can be driven via most motherboard utilities from the various manufacturers.

http://www.madshrimps.be/articles/article/1001369/