Corsair CMK48GX5M2B6000C30
- Key Specs:
- DDR5 · 48GB (2x24GB) · 6000MT/s · CL30
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Manufacturer: Corsair Last updated: 2026-09-14
Corsair CMK48GX5M2B6000C30 Review
The Corsair CMK48GX5M2B6000C30 is a 48GB (2x24GB) DDR5-6000 desktop memory kit rated CL30, for a true latency of 10ns.
Speed and Latency
Speed and CL only mean something together: 30 cycles at 6000MT/s is 10ns of real delay. That beats 54% of the desktop DDR5 kits in our catalog.
Platform Fit
Fits DDR5 desktop boards: AMD AM5 (600 and 800 series) and Intel 600, 700 and 800 series boards with DDR5 slots. It does not fit DDR4 boards; the notch is in a different place. 6000MT/s is the sweet spot on AM5, where the memory controller runs 1:1 with the memory for the lowest latency. Profiles: XMP 3.0.
Capacity and Configuration
The two 24GB modules give you dual channel with two slots used. Plan capacity now: adding a second kit for four DDR5 sticks usually forces the memory down well below its rated speed. 48GB is the comfortable amount for gaming and creative work in 2026.
Build and Cooling
Corsair does not publish the module height, so check your cooler's RAM clearance if you use a large air cooler. Corsair does not disclose which memory chips are used, which matters mainly if you plan to tune timings by hand.
Speed Score
Our DDR5 Speed Score for this kit is 8.3 out of 10, rated from its transfer rate and true latency against other DDR5 kits. Scores only compare within the same DDR generation.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- AM5 builds that want the 6000MT/s 1:1 sweet spot
Not for
- Manual timing tuning: memory chips are not disclosed
- Adding a second kit later for four sticks
Specifications
What these specs meanHow fast this kit is among DDR5 kits, rated from its speed and latency.
Identity
| Peak Bandwidth | 96.0 GB/s |
|---|---|
| Brand | Corsair |
| Part Number | CMK48GX5M2B6000C30 |
Memory
| DDR Generation | DDR5 |
|---|---|
| Capacity | 48 GB |
| Speed | 6000 MT/s |
| CAS Latency | 30 |
| Module Count | 2 |
Module and platform
| RAM Segment | Desktop DDR5 |
|---|---|
| Form Factor | Desktop DIMM |
| Platform Optimisation | AM5 |
Capacity
| Capacity Per Module | 24 GB |
|---|
Speed and timings
| True Latency | 10.0 ns |
|---|
Overclocking profile
| XMP Support | Yes |
|---|---|
| XMP Version | XMP 3.0 |
| EXPO Support | No |
Silicon
| Memory IC | Undisclosed |
|---|
FAQs
Is the Corsair CMK48GX5M2B6000C30 compatible with my motherboard?
It fits DDR5 desktop boards (AMD AM5, Intel 600, 700 and 800 series with DDR5 slots). It does not fit DDR4 boards.
Is 6000MT/s CL30 a good combination?
It works out to 10ns true latency. That is tighter than 54% of the desktop DDR5 kits we list.
Can I add a second kit later for four sticks?
It is not recommended. Four DDR5 sticks usually run well below their rated speed. Buy the total capacity you need as one two-stick kit.
Is 6000MT/s good for AMD Ryzen 7000 and 9000?
Yes. 6000MT/s lets the memory controller run 1:1 with the memory on AM5, the best balance of speed and latency.
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