Crucial CT4G4RFS8213 4 GB (1x4GB DDR4-2133)

The Crucial CT4G4RFS8213 4 GB ships as a single module with 4GB of DDR4 on board. Operating voltage sits at 1.35V. It is specced for 2133 MT/s with a CAS latency of 15, working out to a true latency of about 14.1ns. DDR4 pricing in the budget tier makes this a sensible pairing for older AM4 and LGA1700 boards that top out at DDR4.

For gaming, capacity matters more than raw speed past 3600 MT/s — 4GB comfortably covers esports and everyday use. Its $49.99 price tag places it squarely in budget territory. Drop it into the PlanMyPC builder to check compatibility with the rest of your parts and compare current memory kit prices across retailers.