Kingston FURY Impact 64GB (2x32GB) 5600MT/s DDR5 CL40 Laptop Memory Kit of 2
Bottom line: The Kingston FURY Impact 64GB 5600MT/s DDR5 CL40 Laptop Memory Kit of 2 ($1,359.05 on Amazon as of 2026-10-20 20:20 UTC): 64GB total (2x32GB) hits the max SODIMM capacity for most DDR5 notebooks; main trade-off: CL40 latency is loose; tighter CL36 DDR5 SODIMM kits exist.
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*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 64GB total (2x32GB) hits the max SODIMM capacity for most DDR5 notebooks
- ✓ 5600MT/s rated speed with no BIOS tuning via Plug N Play auto-overclock
- ✓ Intel XMP 3.0 certified for systems that do expose memory profiles
- ✓ On-die ECC catches in-DRAM bit errors for longer stable render and compile runs
Cons
- ✗ CL40 latency is loose; tighter CL36 DDR5 SODIMM kits exist
- ✗ Plug N Play speed depends on your laptop's memory controller support
- ✗ Many thin notebooks solder RAM and have no SODIMM slots to use this in
- ✗ Two 32GB modules require both slots, so no single-stick upgrade path
Manufacturer description
Kingston FURY Impact DDR5 brings desktop-class overclocked memory to notebooks and small form factor builds, and this 64GB kit (2x32GB) is the top of that SODIMM range. Running at 5600MT/s with CL40 timings, it gives you the headroom for heavy multitasking, virtual machines, local AI workloads, and large creative projects that a stock 16GB or 32GB laptop configuration chokes on. The standout feature is Kingston's Plug N Play automatic overclocking: the kit negotiates its rated speed at 1.1V without you entering BIOS or manually enabling a profile. If your system does expose memory settings…
SpecPicks Verdict
SpecPicks scored Kingston FURY Impact 64GB 5600MT/s DDR5 CL40 Laptop Memory Kit of 2 using a rating × review-volume × price-fit model applied to published specs and reviews across the memory (ram) category. Compare with similarly-priced alternatives in the memory (ram) category before committing. 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 64GB kit work in my laptop?
It fits laptops and small form factor systems with two open DDR5 SODIMM slots. Many thin notebooks solder their memory, so check your model's service manual for user-replaceable SODIMM slots before ordering.
Do I need to change BIOS settings to get 5600MT/s?
No. Kingston's Plug N Play automatic overclocking negotiates the rated speed at 1.1V without you enabling a profile. The kit is also Intel XMP 3.0 certified if your system lets you load a profile manually.
Is this kit rated CL40 a problem for gaming?
CL40 is standard for 5600MT/s DDR5 SODIMMs. The higher transfer rate offsets the looser timing versus DDR4, and for capacity-bound work like VMs or large project files the 64GB matters more than latency.
What does On-Die ECC actually do here?
On-die ECC corrects single-bit errors inside the DRAM chips themselves, improving stability during sustained loads. It is not the same as full system ECC and does not report errors to the operating system.
Key Features
- Mighty DDR5 SODIMM Performance
- Plug N Play Automatic Overclocking Functionality
- Intel XMP 3.0 Certified
- Lower Power Consumption, Increased Efficiency
- Improved Stability with On-Die ECC
Full Specifications
| Brand | Kingston |
|---|---|
| Voltage | 1.1 volts |
| RAM Size | 32 GB |
| Model Name | FURY Impact |
| Unit Count | 1 Count |
| Form Factor | SO-DIMM |
| Memory Speed | 5600 MHz |
| Model Number | KF556S40IBK2-64 |
| Built-In Media | User manual, cable or plug. |
| Number of Pins | 260 |
| Mfr Part Number | KF556S40IBK2-64 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Memory Generation | DDR5 |
| Compatible Devices | Laptop |
| Data Transfer Rate | 5600 megabits_per_second |
| Memory Form Factor | SODIMM |
| Additional Features | DDR5, Ecc, overclocking |
| Computer Memory Size | 32 GB |
| Warranty Description | Lifetime |
| Full listing title | Kingston FURY Impact 64GB (2x32GB) 5600MT/s DDR5 CL40 Laptop Memory Kit of 2 | Lower Power Comsumption | Intel XMP 3.0 | Plug N Play | KF556S40IBK2-64 |
Ready to buy?
Kingston FURY Impact 64GB (2x32GB) 5600MT/s DDR5 CL40 Laptop Memory Kit of 2 | Lower Power Comsumption | Intel XMP 3.0 | Plug N Play | KF556S40IBK2-64 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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