Crucial CT4K4G4RFS8266 16 GB (4x4GB DDR4-2666)

The Crucial CT4K4G4RFS8266 16 GB arrives as 4 modules of 4GB each 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. For gaming, capacity matters more than raw speed past 3600 MT/s — 16GB comfortably covers modern AAA titles.

PlanMyPC's builder flags compatibility problems automatically and tracks the latest memory kit deals from multiple stores. 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.