DDR5
From Amazon
CORSAIR VENGEANCE DDR5 RAM 128GB (4x32GB) 5600MHz CL40 Intel XMP iCUE Compatible Computer Memory - Black (CMK128GX5M4B5600C40)
Neocomputers
Corsair Vengeance 128GB Kit (4 x 32GB), DDR5, 5600MHz (PC5-44800), CL40, 1.25V, PMIC, XMP 3.0, DIMM Memory
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