G.SKILL
G.SKILL Ripjaws DDR5 SO-DIMM Series DDR5 RAM 64GB (2x32GB) 4800MT/s CL40-39-39-76 1.10V Unbuffered Non-ECC Notebook/Laptop Memory SO-DIMM (F5-4800S4039A32GA2-RS)
Bottom line: The G.SKILL Ripjaws DDR5 SO-DIMM Series DDR5 RAM 64GB: 64GB total from two 32GB modules, enough for VMs, local AI models and heavy multitasking; main trade-off: DDR5-4800 is entry-level DDR5 speed; newer laptops may support faster SO-DIMMs.
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Pros & Cons
Pros
- ✓ 64GB total from two 32GB modules, enough for VMs, local AI models and heavy multitasking
- ✓ Runs at standard 1.10V DDR5 voltage, no overclocking profile needed
- ✓ JEDEC default profile boots at rated SPD speed on compatible laptops
- ✓ Matched 2x32GB pair fills both slots in a typical two-slot laptop for dual-channel operation
- ✓ Supported by G.SKILL QVL and RAM Configurator tool for checking compatibility
Cons
- ✗ DDR5-4800 is entry-level DDR5 speed; newer laptops may support faster SO-DIMMs
- ✗ CL40-39-39-76 timings are loose compared with performance-tuned kits
- ✗ Non-ECC, so not suitable for workstations that require error correction
- ✗ Matched kit only: G.SKILL warns that mixing with other modules causes instability
Manufacturer description
The G.SKILL Ripjaws DDR5 SO-DIMM kit (F5-4800S4039A32GA2-RS) gives your laptop 64GB of memory across two matched 32GB modules. If you run large browser sessions, virtual machines, local AI models or big photo and video projects, 64GB gives you room before the system starts swapping to the SSD. Each module is a 262-pin, non-ECC, unbuffered DDR5 SO-DIMM rated for DDR5-4800 at CL40-39-39-76 and 1.10V. It runs at the standard JEDEC voltage, so you won't need overclocking profiles or BIOS changes to use it. The kit includes a JEDEC default profile and boots at JEDEC default SPD speed on…
SpecPicks Verdict
SpecPicks scored G.SKILL Ripjaws DDR5 SO-DIMM Series DDR5 RAM 64GB (2x32GB) 4800MT/s… using a rating × review-volume × price-fit model applied to published specs and reviews across the memory (ram) category. G.SKILL'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 G.SKILL DDR5 SO-DIMM kit fit my laptop?
It uses 262-pin DDR5 SO-DIMM modules, the form factor used by DDR5 laptops and many mini PCs. It will not work in DDR4 laptops or desktop DIMM slots. Check G.SKILL's memory QVL or RAM Configurator tool to confirm your exact model is validated.
Do I need to enable XMP or change BIOS settings to get 4800MT/s?
No. The kit includes a JEDEC default profile and boots at JEDEC default SPD speed on compatible hardware with default BIOS settings. It is rated for DDR5-4800 CL40-39-39-76 at 1.10V.
Can I add this kit to the RAM already in my laptop?
G.SKILL advises against mixing memory kits. The two 32GB modules are sold as a matched set designed to run together, and mixing them with other modules can cause instability or system failure. Replace your existing SO-DIMMs with this pair instead.
Does this memory support ECC?
No. The F5-4800S4039A32GA2-RS modules are unbuffered and non-ECC. If your system requires ECC memory, you will need a different kit.
What warranty does the G.SKILL Ripjaws DDR5 SO-DIMM kit come with?
The product details here do not state warranty terms. Check the product listing or G.SKILL's official website for the current warranty coverage on model F5-4800S4039A32GA2-RS.
Key Features
- G.SKILL Ripjaws DDR5 SO-DIMM Series DDR5 SO-DIMM Memory Kit, Model: F5-4800S4039A32GA2-RS
- 64GB total capacity kit containing 2x32GB modules, rated for up to DDR5-4800 CL40-39-39-76 at 1.10V
- Non-ECC, DDR5 SO-DIMM, 262-pin, for Laptop/Notebook
- Includes JEDEC default profile
- Do not mix memory kits. Memory kits are sold in matched kits that are designed to run together as a set. Mixing memory kits will result in stability issues or system failure.
- Refer to G.SKILL memory QVL or RAM Configurator tool on the G.SKILL website for more details on validated motherboard and hardware.
Full Specifications
| Brand | G.SKILL |
|---|---|
| Voltage | 1.1 volts |
| RAM Size | 64 GB |
| Model Name | RipJaws DDR5 SO-DIMM |
| Form Factor | SO-DIMM |
| Memory Speed | 4800 mt_s |
| Model Number | F5-4800S4039A32GA2-RS |
| Item Type Name | DDR5 SO-DIMM |
| Number of Pins | 262 |
| Mfr Part Number | F5-4800S4039A32GA2-RS |
| Memory Generation | DDR5 |
| Compatible Devices | Laptop |
| Data Transfer Rate | 4800 megabits_per_second |
| Memory Form Factor | SODIMM |
| Additional Features | High Performance |
| Computer Memory Size | 64 GB |
| Warranty Description | Limited Lifetime Manufacturer |
| RAM Memory Technology | DDR5 |
| Column Address Strobe Latency | 40 |
Ready to buy?
G.SKILL Ripjaws DDR5 SO-DIMM Series DDR5 RAM 64GB (2x32GB) 4800MT/s CL40-39-39-76 1.10V Unbuffered Non-ECC Notebook/Laptop Memory SO-DIMM (F5-4800S4039A32GA2-RS) 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.
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