Corsair CMH48GX5M2B7000C40 48GB
- Summary:
- 48GB (2x24GB) DDR5-7000 CL40 Dominator Titanium RGB Kit
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Manufacturer: Corsair Last updated: 2026-09-14
Corsair CMH48GX5M2B7000C40 48GB (2x24GB) DDR5 Dominator Titanium RGB Desktop RAM Kit Review
Want more than 32GB without jumping to a full 64GB kit, with high-speed Dominator Titanium RGB styling? The Corsair CMH48GX5M2B7000C40 is a matched 2x24GB kit at DDR5-7000 CL40.
48GB via two 24GB modules leaves room to grow later, and 7000MT/s gives real bandwidth for Intel platforms, though CL40 keeps true latency a bit behind Corsair's tighter-timed 32GB Dominator kits.
Performance
11.4ns true latency at 7000MT/s CL40 is solid but trails Corsair's CMH32GX5M2X7000C34 kit (9.7ns) at the same 7000MT/s speed — the looser CL40 timing here is the trade-off for the extra 16GB of capacity.
Compatibility and Buying Advice
7000MT/s is Intel territory; AM5 boards will run this at a 2:1 fabric ratio. If you're on Intel and want 48GB with room to expand toward 96GB later, this is a solid pick; AM5 gamers should look at a 6000MT/s kit instead.
Specifications
Identity
| Brand | Corsair |
|---|---|
| Part Number | CMH48GX5M2B7000C40 |
Memory
| DDR Generation | DDR5 |
|---|---|
| Capacity | 48 GB |
| Speed | 7000 MT/s |
| CAS Latency | 40 |
| Module Count | 2 |
Physical
| Form Factor | Desktop DIMM |
|---|---|
| RGB Lighting | Yes |
Module and platform
| RAM Segment | Desktop DDR5 |
|---|
Capacity
| Capacity Per Module | 24 GB |
|---|
Speed and timings
| True Latency | 11.4 ns |
|---|
Silicon
| Memory IC | Undisclosed |
|---|
| Platform Sweet Spot | Intel |
|---|---|
| Spec Score | 6.2 |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Intel builds wanting more than 32GB with high-speed Dominator styling
- Workstation builds with room to expand capacity later
Not for
- AM5 builds — a 6000MT/s kit performs better in games on that platform
- Buyers chasing the tightest possible timings at 7000MT/s — see CMH32GX5M2X7000C34
FAQs
What are the key specifications of the Corsair CMH48GX5M2B7000C40 48GB (2x24GB) DDR5 Dominator Titanium RGB Desktop RAM Kit?
The Corsair CMH48GX5M2B7000C40 48GB (2x24GB) DDR5 Dominator Titanium RGB Desktop RAM Kit is a memory kit from Corsair. Key specs: DDR Generation DDR5, Capacity 48GB (2x24GB), Speed 7000MT/s, CAS Latency 40, Module Count 2.
Will the Corsair CMH48GX5M2B7000C40 48GB (2x24GB) DDR5 Dominator Titanium RGB Desktop RAM Kit work with my current setup?
The Corsair CMH48GX5M2B7000C40 48GB (2x24GB) DDR5 Dominator Titanium RGB 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 CMH48GX5M2B7000C40 48GB (2x24GB) DDR5 Dominator Titanium RGB Desktop RAM Kit best suited to?
It suits intel builds wanting more than 32gb with high-speed dominator styling, workstation builds with room to expand capacity later.
What are the drawbacks of the Corsair CMH48GX5M2B7000C40 48GB (2x24GB) DDR5 Dominator Titanium RGB Desktop RAM Kit?
It is a poor fit for am5 builds — a 6000mt/s kit performs better in games on that platform, buyers chasing the tightest possible timings at 7000mt/s — see cmh32gx5m2x7000c34.
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