Kingston KHX18C10/4 4 GB (1x4GB DDR3-1866)

The Kingston KHX18C10/4 4 GB comes as a single module with 4GB of DDR3 on board. It is specced for 1866 MT/s with a CAS latency of 10, working out to a true latency of about 10.7ns. Operating voltage sits at 1.35V. 4GB gives you enough headroom for esports and everyday use; past 3600 MT/s, extra frequency brings diminishing returns.

PlanMyPC's builder flags compatibility problems automatically and tracks the latest memory kit deals from multiple stores. Warranty coverage follows Kingston's standard policy — confirm regional terms on the listing. Scroll down for the complete spec table; the builder's compatibility checker will warn you about any conflicts with components you have already picked.