Corsair CMK64GX5M2B5200C40 64GB
- Capacity:
- 64GB (2x32GB)
- Speed:
- 5200MT/s
- CAS Latency:
- CL40
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Manufacturer: Corsair Last updated: 2026-09-14
Corsair CMK64GX5M2B5200C40 64GB (2x32GB) DDR5 Desktop RAM Kit Review
Need 64GB of DDR5 at a low, universally safe speed? The Corsair CMK64GX5M2B5200C40 is a matched 2x32GB Vengeance kit running DDR5-5200 CL40.
5200MT/s CL40 is close to the DDR5 floor, so this kit prioritizes broad motherboard compatibility over bandwidth — a sensible pick if your board isn't validated for 6000MT/s+ EXPO/XMP profiles.
Performance
15.4ns true latency at 5200MT/s trails Corsair's 6000MT/s 64GB kits (CMK64GX5M2B6000C40 at 13.3ns, CMK64GX5M2B6000C30 at 10.0ns) by a meaningful margin. This kit's appeal is compatibility and typically lower price, not speed.
Compatibility and Buying Advice
5200MT/s runs on essentially any DDR5 motherboard without touching EXPO/XMP settings, making this a safe choice for older or budget boards. If your platform supports 6000MT/s, a faster 64GB kit is the better buy for the same capacity.
Specifications
Identity
| Brand | Corsair |
|---|---|
| Part Number | CMK64GX5M2B5200C40 |
Memory
| DDR Generation | DDR5 |
|---|---|
| Capacity | 64 GB |
| Speed | 5200 MT/s |
| CAS Latency | 40 |
| Module Count | 2 |
Physical
| Form Factor | Desktop DIMM |
|---|---|
| RGB Lighting | No |
Module and platform
| RAM Segment | Desktop DDR5 |
|---|
Capacity
| Capacity Per Module | 32 GB |
|---|
Speed and timings
| True Latency | 15.4 ns |
|---|
Silicon
| Memory IC | Undisclosed |
|---|
Physical and lighting
| Colour | Black |
|---|
| Platform Sweet Spot | AM5 |
|---|---|
| Spec Score | 4.9 |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Older or budget DDR5 boards with limited speed validation
- Buyers wanting 64GB without configuring XMP/EXPO
Not for
- Gaming or bandwidth-sensitive builds — a 6000MT/s 64GB kit is a better pick
- Buyers chasing the best possible latency at this capacity
FAQs
What are the key specifications of the Corsair CMK64GX5M2B5200C40 64GB (2x32GB) DDR5 Desktop RAM Kit?
The Corsair CMK64GX5M2B5200C40 64GB (2x32GB) DDR5 Desktop RAM Kit is a memory kit from Corsair. Key specs: DDR Generation DDR5, Capacity 64GB (2x32GB), Speed 5200MT/s, CAS Latency 40, Module Count 2.
Will the Corsair CMK64GX5M2B5200C40 64GB (2x32GB) DDR5 Desktop RAM Kit work with my current setup?
The Corsair CMK64GX5M2B5200C40 64GB (2x32GB) DDR5 Desktop RAM Kit 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 CMK64GX5M2B5200C40 64GB (2x32GB) DDR5 Desktop RAM Kit best suited to?
It suits older or budget ddr5 boards with limited speed validation, buyers wanting 64gb without configuring xmp/expo.
What are the drawbacks of the Corsair CMK64GX5M2B5200C40 64GB (2x32GB) DDR5 Desktop RAM Kit?
It is a poor fit for gaming or bandwidth-sensitive builds — a 6000mt/s 64gb kit is a better pick, buyers chasing the best possible latency at this capacity.
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