Crucial CT4G4DFS8266 4 GB (1x4GB DDR4-2666)

The Crucial CT4G4DFS8266 4 GB arrives as a single module with 4GB of DDR4 on board. It is rated at 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.

Once memory clears 3600 MT/s, frequency gains taper off, so the 4GB on offer here is the spec that counts for esports and everyday use. Drop it into the PlanMyPC builder to check compatibility with the rest of your parts and compare current memory kit prices across retailers. Warranty coverage follows Crucial's standard policy — confirm regional terms on the listing.