Corsair Value Select DDR4 SO-DIMM 2133MHz CL15 - 4GB (1x4GB)

Corsair Value Select DDR4-2133 is the most basic DDR4 SO-DIMM in Corsair's lineup, running at the original JEDEC baseline for DDR4. Timings are 15-15-15-36 at 1.2V. No profiles to enable, no configuration needed. Plug it in and it works at its rated speed.

Where 2133MHz Makes Sense

2133MHz is the DDR4 floor. Intel 6th-gen (Skylake) platforms launched with DDR4-2133 as the official supported speed, and some older laptops and NUC-class systems are only validated for this tier. If you're upgrading an older laptop or embedded system that shipped with DDR4-2133, matching the original speed avoids any compatibility concerns.

Limitations

2133MHz is meaningfully slower than DDR4-2666 or DDR4-3200. Real-world latency at CL15/2133MHz works out to about 14.1ns, which is comparable to higher-speed kits with looser timings, but bandwidth is lower. For any platform that supports 2666MHz or higher, there's no reason to buy 2133MHz unless price is the only factor.

Sold as single 8GB modules. Non-ECC, unbuffered, 260-pin SO-DIMM. Limited lifetime warranty.

Best for: Replacing failed memory in older laptops and compact systems that shipped with DDR4-2133, or maxing out capacity in systems with strict speed tier requirements.

Avoid if: Your system supports DDR4-2666 or higher. Spend the trivial price difference for faster memory.