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Manufacturer: Crucial Last updated: 2026-09-14
Crucial CT16G56C46S5.C8B2 16GB Review
The Crucial CT16G56C46S5.C8B2 is a 16GB DDR5-5600 CL46 SODIMM, essentially the same laptop memory module as Crucial's standard CT16G56C46S5, just sold under a different SPD/vendor suffix.
We'd treat this as identical to the regular CT16G56C46S5 for buying purposes, it's a straightforward 16GB laptop upgrade at DDR5's common 5600MT/s speed with no XMP profile.
Performance
5600MT/s CL46 puts true latency at about 16.4ns, standard JEDEC timings for a laptop SODIMM rather than a tuned profile. For a single 16GB module aimed at laptop and mini-PC upgrades, that's the expected tradeoff, capacity and compatibility over raw speed.
Comparison to Alternatives
This is functionally the same part as Crucial's CT16G56C46S5 already in this catalog, same capacity, speed, and CL46 timing, just a different suffix on the part number (vendor/packaging code rather than a spec difference). If you need double the capacity in one slot, step up to Crucial's CT32G52C42S5.C16B2 32GB SODIMM instead.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- 16GB single-slot laptop upgrades
- Mini-PC and SFF systems using SODIMM
Not for
- Desktop systems (wrong form factor)
- Buyers who specifically need an XMP-certified SODIMM
Specifications
What these specs meanIdentity
| Peak Bandwidth | 44.8 GB/s |
|---|---|
| Brand | Crucial |
| Part Number | CT16G56C46S5.C8B2 |
| Series | Crucial RAM |
Memory
| DDR Generation | DDR5 |
|---|---|
| Capacity | 16 GB |
| Speed | 5600 MT/s |
| CAS Latency | 46 |
| Module Count | 1 |
| Voltage | 1.1 V |
Physical
| Form Factor | SODIMM |
|---|---|
| RGB Lighting | No |
Module and platform
| RAM Segment | Laptop SODIMM |
|---|
Capacity
| Capacity Per Module | 16 GB |
|---|
Speed and timings
| True Latency | 16.4 ns |
|---|
Silicon
| Memory IC | Micron |
|---|---|
| ECC | No |
Physical and lighting
| Colour | Green PCB |
|---|
Commercial
| Warranty | Limited Lifetime |
|---|
FAQs
What are the key specifications of the Crucial CT16G56C46S5.C8B2 16GB?
The Crucial CT16G56C46S5.C8B2 16GB is a memory kit from Crucial. Key specs: DDR Generation DDR5, Capacity 16GB, Speed 5600MT/s, CAS Latency 46, Module Count 1.
Will the Crucial CT16G56C46S5.C8B2 16GB work with my current setup?
The Crucial CT16G56C46S5.C8B2 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 Crucial CT16G56C46S5.C8B2 16GB best suited to?
Best suited to: 16GB single-slot laptop upgrades; Mini-PC and SFF systems using SODIMM.
What are the drawbacks of the Crucial CT16G56C46S5.C8B2 16GB?
Not the best fit for: Desktop systems (wrong form factor); Buyers who specifically need an XMP-certified SODIMM.