Crucial
Crucial 16GB DDR5 RAM (CT16G48C40S5)
Bottom line: The Crucial 16GB DDR5 RAM ($299.99 on Amazon as of 2026-10-20 16:16 UTC, orderable but not in stock): Native 4800MHz PC5-38400 speed, no manual tuning needed; main trade-off: CL40 latency is loose compared to faster DDR5 kits.
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*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Native 4800MHz PC5-38400 speed, no manual tuning needed
- ✓ Runs at 1.1V, lower draw than DDR4 laptop memory
- ✓ Supports both Intel XMP 3.0 and AMD EXPO profiles
- ✓ Micron-made and tested at component and module level
Cons
- ✗ CL40 latency is loose compared to faster DDR5 kits
- ✗ Single 16GB stick, so no dual-channel unless you buy two
- ✗ Non-ECC, not suitable for workstation error correction
- ✗ 262-pin SODIMM only, will not fit desktop DIMM slots
Manufacturer description
The Crucial 16GB DDR5 SODIMM (CT16G48C40S5) is a single 262-pin laptop memory module running at 4800MHz with CL40 timings, rated PC5-38400 and drawing just 1.1V. It is built for 12th Gen Intel Core and AMD Ryzen 7000 Series laptops, and it carries Intel XMP 3.0 and AMD EXPO support on the same module. If your notebook shipped with 8GB and you now juggle a browser full of tabs, a compiler, and a Discord call, this Crucial DDR5 upgrade is the cheapest way to stop hitting the swap file. The 1Rx8, non-ECC configuration is the standard single-rank layout most thin-and-light laptops expect, so…
SpecPicks Verdict
SpecPicks scored Crucial 16GB DDR5 RAM using a rating × review-volume × price-fit model applied to published specs and reviews across the memory (ram) category. Crucial's memory (ram) lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for memory (ram) of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Will this work in my laptop?
It fits laptops that take 262-pin DDR5 SODIMM modules, and Crucial lists it as best for 12th Gen Intel Core and AMD Ryzen 7000 Series systems. Check your laptop's manual or Crucial's system scanner to confirm DDR5 SODIMM support before ordering.
Is this one stick or a two-stick kit?
This is a single 16GB module (CT16G48C40S5). If you want 32GB or dual-channel bandwidth, you will need to buy two of them or pair it with a matching module already in your laptop.
What speed and latency does it run at?
It runs at 4800MHz with a CAS Latency of 40, rated PC5-38400 at 1.1V. It also supports downclocking, so it will run at a lower speed if your laptop's memory controller requires it.
Does it support XMP or EXPO overclocking profiles?
Yes. Intel XMP 3.0 and AMD EXPO are both supported on this same module, so it can pick up whichever profile your platform uses.
Is this ECC memory?
No. This module is non-ECC with a 1Rx8 single-rank configuration, which is the standard for consumer laptops. If you need error-correcting memory for a mobile workstation, look for a module explicitly listed as ECC SODIMM.
Key Features
- Boosts System Performance: 16GB DDR5 RAM laptop memory that operates at 4800MHz to improve multitasking and system responsiveness for smoother performance
- Accelerated gaming performance: Every millisecond gained in fast-paced gameplay counts—power through heavy workloads and benefit from versatile downclocking and higher frame rates
- Optimized DDR5 compatibility: Best for 12th Gen Intel Core and AMD Ryzen 7000 Series processors — Intel XMP 3.0 and AMD EXPO also supported on the same RAM module
- Trusted Micron Quality: Backed by 42 years of memory expertise, this DDR5 RAM is rigorously tested at both component and module levels, ensuring top performance and reliability
- ECC type = non-ECC, form factor = SODIMM, pin count = 262-pin, PC speed = PC5-38400, voltage = 1.1V, rank and configuration = 1Rx8
Full Specifications
| Brand | Crucial |
|---|---|
| Voltage | 1.1 |
| RAM Size | 16 GB |
| Model Name | CT16G56C46S5 |
| Unit Count | 1 Count |
| Form Factor | SO-DIMM |
| Memory Speed | 4800 MHz |
| Model Number | CT16G48C40S5 |
| Compatibility | PC |
| Item Type Name | DDR5 Laptop Memory |
| Number of Pins | 262 |
| Mfr Part Number | CT16G48C40S5 |
| Memory Generation | DDR5 |
| Compatible Devices | Laptop |
| Data Transfer Rate | 4800 MHz |
| Memory Form Factor | SODIMM |
| Additional Features | Lightweight |
| Computer Memory Size | 16 GB |
| Warranty Description | Limited Lifetime Warranty |
| RAM Memory Technology | DDR5 |
| Full listing title | Crucial 16GB DDR5 RAM, 4800MHz CL40 Laptop Memory, SODIMM 262-Pin Module, Compatible with 12th Gen Intel Core - CT16G48C40S5 |
Ready to buy?
Crucial 16GB DDR5 RAM, 4800MHz CL40 Laptop Memory, SODIMM 262-Pin Module, Compatible with 12th Gen Intel Core - CT16G48C40S5 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.
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