Patriot Extreme Performance 64GB PC4-21300 (2666MHZ) Viper Elite Series Kit, Red PVE464G266C5QKR Viper Elite Series DDR4 Intended for Intel 100 series and next generation DDR4 platforms 64GB (4 X 16GB) kit 288-Pin NON-ECC UDIMM PC4-21300 (2666Mhz) xmp 2.0