Free Express Shipping! Patriot 64GB Viper DDR5 6400 MHz UDIMM Memory Kit (2 x 32GB) 64GB (2 x 32GB) Capacity,6400 MHz Clock Speed,PC5-51200,288-Pin UDIMM,1.35V,40-40-40-77 Timings,On-Die ECC,Supports Intel XMP 3.0