Crucial
Crucial DDR5-5600 SODIMM Spec and Price in the United Kingdom
DDR52x16GBSODIMM16.43 ns true latency
Crucial's 5600 MT/s laptop kit runs the 32GB pair at CL46, per the product page — the mainstream notebook memory upgrade for DDR5 laptops, in the 2x16GB configuration.
Tied 2nd of 25 models in the Laptop RAM catalog on Speed — 12 models share this figure.
Current best price
Prices include VAT.
Captured periodically and may have changed.- 2x16GB
- 1x32GB 4800 CL40
August 13, 202634 capturestoday · £406.01
Each point is one capture, not a list price. How we track prices
Specifications
- Capacity
- 2x16GB
- Memory type
- DDR5
- Speed
- 5600 MT/s
- CAS latency
- Form factor
- SODIMM
- Modules
- 2
- RGB
- No
Capacities
| Configuration | Part number | Speed | CAS latency | Current best price |
|---|---|---|---|---|
| 2x16GB | CT2K16G56C46S5 | 5600 MT/s | 46 | — |
| 1x16GB 4800 CL40 | CB16GS4800 | 4800 MT/s | 40 | — |
| 1x32GB 4800 CL40 | CT32G48C40S5 | 4800 MT/s | 40 | £406.01 at Amazon.co.uk · captured 2026-09-15 |
| 2x8GB 4800 CL40 | CT2K8G48C40S5 | 4800 MT/s | 40 | — |
| 2x32GB | CT2K32G56C46S5 | — | — | — |
| 1x64GB | CT64G56C46S5 | — | — | — |
| 2x32GB 4800 CL40 | CT2K32G48C40S5 | 4800 MT/s | 40 | — |
Guides for this category
How much RAM you actually needHow to size memory from the pressure your machine is under now, why running short quietly costs speed, and when a matched pair beats one stick.RAM speed and latency, and when they matterWhat a kit's MT/s and CAS latency each measure, why true latency is the two together, and the machines where the numbers actually change anything.SO-DIMM vs DIMM: the memory a laptop takesWhy laptop memory is a different module from desktop memory, how DDR4 and DDR5 are keyed apart, and why some machines take no module at all.What is ECC memory, and when you need itWhat error-correcting memory actually catches, how registered and load-reduced modules differ from unbuffered ones, and why the platform decides.
What owners and reviewers say
Summarised from 2 source(s), reviewed September 13, 2026. A source is counted only where it names this model exactly. How we track prices
Commonly praised
- Delivered good performance in testing, with high compatibility and top build quality.
- Ran at its declared specification straight out of the box, at a reasonable price for its capacity.
- Owners report the module installing simply and working immediately, with the large capacities giving laptops far more memory.
- Owners consider it good value for a DDR5 SODIMM, among the cheaper options available.
- The vendor's lifetime warranty and reputation are cited as reasons to buy.
Commonly criticised
- Ships with only a standard profile and a single available speed.
- Owners warn that many laptops do not support the highest-density modules and advise checking compatibility before buying.
- Several owners note a long first-boot memory-training delay before the laptop posts normally.
- The price is described as high compared with DDR4.
Sources behind this summary
- Newegg — 5 out of 5 (151 ratings), as of September 15, 2026
- funkykit.com — review
Sources
Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.