16GB KIT (2 x 8GB) for Asus Crosshair Series V Formula (Non-ECC) V Formula-Z (Non-ECC). DIMM DDR3 Non-ECC PC3-12800 1600MHz RAM Memory. Genuine A-Tech Brand. at Amazon.com
OFFTEK 16GB Replacement Memory RAM Upgrade for Asus Crosshair VI Hero ROG (DDR4-17000 - Non-ECC) Motherboard Memory at Amazon.com