Crucial CT2KIT25664BF1339 4 GB (2x2GB DDR3-1333)

The Crucial CT2KIT25664BF1339 4 GB comes as 2 modules of 2GB each with 4GB of DDR3 on board. It is specced for 1333 MT/s with a CAS latency of 9, working out to a true latency of about 13.5ns. 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.

Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. Warranty coverage follows Crucial'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.