Crucial CT16G4RFD8266-2G6E1 16 GB (1x16GB DDR4-2666)

The Crucial CT16G4RFD8266-2G6E1 16 GB ships as a single module with 16GB of DDR4 on board. It is specced for 2666 MT/s with a CAS latency of 19, working out to a true latency of about 14.3ns. Operating voltage sits at 1.35V. 16GB gives you enough headroom for modern AAA titles; past 3600 MT/s, extra frequency brings diminishing returns.

Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. Support and warranty service run through Crucial, with terms that vary by region. Scroll down for the complete spec table; the builder's compatibility checker will warn you about any conflicts with components you have already picked.