Crucial Pro CP2K16G48C40U5
- DDR Generation:
- DDR5
- Capacity:
- 32GB (2x16GB)
- Speed:
- 4800MT/s
- CAS Latency:
- CL40
- Form Factor:
- UDIMM
- RGB Lighting:
- No
- Colour:
- Black
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Manufacturer: Crucial Last updated: October 9, 2026
Crucial Pro CP2K16G48C40U5 Review
Crucial Pro CP2K16G48C40U5 is a 32GB (2x16GB) DDR5-4800 kit running at CL40 timings and 1.1V, in a UDIMM form factor for a desktop build.
Built for gaming and content-creation rigs, this black kit pairs 32GB (2x16GB) of DDR5 memory with tight CL40 timings so it drops in and runs at its rated speed with XMP/EXPO enabled, no manual tuning required.
Performance
Rated at 4800MT/s with CL40 latency (40-39-39-77 timings) at 1.1V, this kit is validated for stable one-click overclocking profiles on compatible motherboards.
Compatibility
UDIMM form factor fits standard desktop DIMM slots on mainstream and enthusiast motherboards; confirm your board's QVL for guaranteed rated-speed operation.
Use Case
A good fit for gaming PCs, content creation rigs, and general desktop builds wanting reliable, tuned memory.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Gaming PCs
- Content creation
- General desktop upgrades
Not for
- Laptops (wrong form factor)
- ECC/server workloads
Specifications
What these specs meanHow fast this kit is among DDR5 kits, rated from its speed and latency.
Identity
| Peak Bandwidth | 76.8 GB/s |
|---|---|
| Brand | Crucial |
| Part Number | CP2K16G48C40U5 |
| Series | Pro |
Memory
| DDR Generation | DDR5 |
|---|---|
| Capacity | 32 GB |
| Speed | 4800 MT/s |
| CAS Latency | 40 |
| Module Count | 2 |
| Voltage | 1.1 V |
Physical
| RGB Lighting | No |
|---|
Module and platform
| RAM Segment | Desktop DDR5 |
|---|---|
| Form Factor | UDIMM |
Capacity
| Capacity Per Module | 16 GB |
|---|
Speed and timings
| Timing String | 40-39-39-77 |
|---|---|
| True Latency | 16.7 ns |
Overclocking profile
| XMP Support | Yes |
|---|---|
| XMP Version | XMP 3.0 |
| EXPO Support | Yes |
Silicon
| Memory IC | Micron |
|---|---|
| ECC | No |
Physical and lighting
| Colour | Black |
|---|
FAQs
What are the key specifications of the Crucial Pro CP2K16G48C40U5 (32GB (2x16GB)/DDR5 4800MHz/CL40/No RGB Black)?
Key specs for the Crucial Pro CP2K16G48C40U5: Capacity Per Module 16 GB, Capacity 32 GB, Speed 4800 MT/s, OC Profile XMP 3.0 + EXPO, Voltage 1.1 V, DDR Generation DDR5.
Will the Crucial Pro CP2K16G48C40U5 (32GB (2x16GB)/DDR5 4800MHz/CL40/No RGB Black) work with my current setup?
The Crucial Pro CP2K16G48C40U5 (32GB (2x16GB)/DDR5 4800MHz/CL40/No RGB Black) 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 Crucial Pro CP2K16G48C40U5 (32GB (2x16GB)/DDR5 4800MHz/CL40/No RGB Black) best suited to?
Best suited to: Gaming PCs; Content creation; General desktop upgrades.
What are the drawbacks of the Crucial Pro CP2K16G48C40U5 (32GB (2x16GB)/DDR5 4800MHz/CL40/No RGB Black)?
Not the best fit for: Laptops (wrong form factor); ECC/server workloads.