Apacer AU 4 GB (1x4GB DDR4-2133)

The Apacer AU 4 GB arrives 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. 4GB gives you enough headroom for esports and everyday use; past 3600 MT/s, extra frequency brings diminishing returns.

DDR4 pricing in the high-end tier makes this a sensible pairing for older AM4 and LGA1700 boards that top out at DDR4. At $189.00 it sits in the high-end memory kit bracket. PlanMyPC's builder flags compatibility problems automatically and tracks the latest memory kit deals from multiple stores.