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Manufacturer: Corsair Last updated: 2026-09-14
Corsair CMK5X16G1B52C40A2 16GB Review
Need a single 16GB DDR5 stick at a low, universally compatible speed? The Corsair CMK5X16G1B52C40A2 is a standalone Vengeance module running DDR5-5200 CL40.
5200MT/s CL40 trails every other single-module Vengeance stick in this catalog on latency, so this is really a fill-a-slot part rather than a performance pick.
Performance
15.4ns true latency at 5200MT/s CL40 is the slowest single-module 16GB option Corsair offers here — the 6000MT/s single sticks like CMK5X16G1B60C36A2 hit 12.0ns for the same 16GB capacity.
Compatibility and Buying Advice
5200MT/s runs without issue on any DDR5 platform, old or new. Buy this only to match an existing 5200MT/s stick, or if it's genuinely the cheapest 16GB single module available — otherwise a 6000MT/s single stick is the better pick at similar prices.
Specifications
Identity
| Brand | Corsair |
|---|---|
| Part Number | CMK5X16G1B52C40A2 |
Memory
| DDR Generation | DDR5 |
|---|---|
| Capacity | 16 GB |
| Speed | 5200 MT/s |
| CAS Latency | 40 |
| Module Count | 1 |
Physical
| Form Factor | Desktop DIMM |
|---|---|
| RGB Lighting | No |
Module and platform
| RAM Segment | Desktop DDR5 |
|---|
Capacity
| Capacity Per Module | 16 GB |
|---|
Speed and timings
| True Latency | 15.4 ns |
|---|
Silicon
| Memory IC | Undisclosed |
|---|
Physical and lighting
| Colour | Black |
|---|
| Platform Sweet Spot | AM5 |
|---|---|
| Spec Score | 2.4 |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Matching an existing 5200MT/s single-module system
- Budget single-stick DDR5 upgrades where price beats speed
Not for
- New builds where a 6000MT/s single stick is available for similar money
- Gaming or bandwidth-sensitive workloads
FAQs
What are the key specifications of the Corsair CMK5X16G1B52C40A2 16GB?
The Corsair CMK5X16G1B52C40A2 16GB is a memory kit from Corsair. Key specs: DDR Generation DDR5, Capacity 16GB, Module Count 1, Speed 5200MT/s, CAS Latency 40.
Will the Corsair CMK5X16G1B52C40A2 16GB work with my current setup?
The Corsair CMK5X16G1B52C40A2 16GB lists DDR Generation is DDR5. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits. Our upgrade checker at /upgrade can confirm compatibility for common combinations.
Who is the Corsair CMK5X16G1B52C40A2 16GB best suited to?
It suits matching an existing 5200mt/s single-module system, budget single-stick ddr5 upgrades where price beats speed.
What are the drawbacks of the Corsair CMK5X16G1B52C40A2 16GB?
It is a poor fit for new builds where a 6000mt/s single stick is available for similar money, gaming or bandwidth-sensitive workloads.