Kingston HyperX 128 GB (4x32GB DDR4-2666)

The Kingston HyperX 128 GB arrives as 4 modules of 32GB each with 128GB of DDR4 on board. It is specced for 2666 MT/s with a CAS latency of 15, working out to a true latency of about 11.3ns. Operating voltage sits at 1.35V. For gaming, capacity matters more than raw speed past 3600 MT/s — 128GB comfortably covers gaming plus heavy multitasking and content work.

Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. Warranty coverage follows Kingston's standard policy — confirm regional terms on the listing. The full specification sheet below breaks out every listed detail, and the compatibility checker flags conflicts with parts already in your build.