
Samsung M471A1K43CB1-CTD 8GB DDR4 PC4-21300, 2666MHZ, 260 PIN SODIMM, 1.2V, CL 19 laptop ram memory module
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AI Verdict
This 8GB DDR4 2666MHz CL19 SODIMM is for laptop users needing a straightforward memory upgrade for everyday tasks.
This 8GB DDR4 2666MHz CL19 SODIMM is a strong fit for users seeking a straightforward, cost-effective memory upgrade for a laptop or compatible NAS. Its 1.2V operation and broad compatibility with 260-pin SODIMM slots make it a reliable choice for boosting everyday performance.
If 8GB isn't enough for your workflow, look for a 16GB DDR4 2666MHz CL19 SODIMM to double your capacity without changing speed or latency.
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Pros
- Provides 8GB of DDR4 memory at 2666MHz, enhancing multitasking capabilities.
- Operates at a low 1.2V, contributing to reduced power consumption and heat generation.
- Features a 260-pin SODIMM form factor, ensuring compatibility with a wide range of laptops.
- Reported to work without issues in various Synology NAS models like the DS920+ and DS720+.
- Supports dual-channel performance when installed in machines with multiple compatible RAM slots.
Cons
- The 8GB capacity may be limiting for heavy multitasking or resource-intensive applications.
- CL19 latency is standard but not optimized for performance-critical applications like serious gaming.
- Not designed for desktop computers, exclusively compatible with laptops and All-in-one PCs.
- Mixing this 2666MHz module with existing slower RAM (e.g., 2133MHz) might force both modules to run at the slower speed, or cause compatibility issues.
Dimension Scores
The 2666MHz speed and CL19 latency are standard for DDR4 SODIMM, offering adequate performance for most laptop tasks.
This 260-pin SODIMM is widely compatible with a broad range of DDR4 laptops and has proven successful in various Synology NAS models.
As a standard SODIMM module with JEDEC specifications, this RAM is not designed for overclocking and offers no advertised headroom.
Samsung is a major memory manufacturer, and user feedback consistently reports stable operation and no issues, even in non-standard applications like NAS devices.
Best For
- Upgrading a laptop with 4GB or less RAM for improved general responsiveness.
- Students needing reliable memory for research, document editing, and online learning platforms.
- Casual users looking to enhance performance for browsing, email, and light productivity applications.
- Synology NAS owners (e.g., DS920+, DS720+) seeking a compatible and stable memory expansion.
Not Recommended For
- Gaming enthusiasts who require higher performance and lower latency RAM for smooth gameplay.
- Professional video or audio editors needing high-capacity and faster RAM for demanding software.
- Heavy multitaskers running multiple resource-intensive applications simultaneously.
Watch Out For
- If your laptop's existing RAM is slower than 2666MHz, installing this module might cause both sticks to downclock to the slower speed, or lead to instability.
- This is a SODIMM module, meaning it's exclusively for laptops and some All-in-one PCs; it will not fit in a standard desktop motherboard.
- While widely compatible, some specific laptop models or motherboards can be finicky with third-party RAM, potentially requiring a BIOS update for full recognition.
Full Specifications
| ASIN | B07F6HBK1N |
| Brand | Samsung |
| Item Weight | 0.64 ounces |
| Manufacturer | Samsung |
| Memory Speed | 2666 MHz |
| Item model number | M471A1K43CB1-CTD |
| Compatible Devices | Laptop |
| Product Dimensions | 9 x 6 x 1 inches |
| Computer Memory Size | 8 GB |
| RAM Memory Technology | DDR4 |
| Is Discontinued By Manufacturer | No |
What Buyers Say
What's really interesting is how often this specific Samsung 8GB module pops up in discussions about upgrading Synology NAS devices, with users reporting it works perfectly without any 'unofficial RAM' warnings. Beyond that niche, laptop owners frequently mention an immediate, noticeable boost in system responsiveness after installing it. It seems to be a go-to for a quick, no-fuss memory bump, especially for older laptops struggling with 4GB. The low 1.2V operation is also a recurring positive, suggesting it runs cool and efficiently.
“Dude, I slapped this 8GB stick in my old laptop and it's actually usable again, no more freezing when I open like, three tabs. Totally worth it.”
Common Praise
- Laptop feels much faster and more responsive after installation.
- Easy to install, recognized immediately by the system without configuration.
- Works flawlessly in Synology NAS models like the DS920+ and DS720+, bypassing compatibility warnings.
- Runs cool and efficiently due to its 1.2V operating voltage.
- Provides a significant performance upgrade for laptops previously running on 4GB RAM.
Common Complaints
- 8GB capacity can still be a bottleneck for demanding applications or heavy browser use with many tabs open.
- Some users found that mixing it with existing slower RAM caused both modules to run at the lower speed.
- Not suitable for high-end gaming rigs where lower latency (e.g., CL16) is preferred for marginal gains.
Ownership Tips
- The performance boost is most apparent when upgrading from 4GB or less, making everyday tasks feel snappier.
- It often pairs well with existing RAM, even if slightly different speeds, though it usually defaults to the slowest module's speed.
- Installation is genuinely tool-free in most laptops, just pop it in and boot up.
- For Synology NAS users, this specific model seems to be a known 'secret weapon' for unofficial upgrades.
Frequently Asked Questions
Is this RAM compatible with desktop computers?
No, this Samsung DDR4 SODIMM is designed specifically for laptops and All-in-one PCs, not standard desktop computers.
What is the voltage of this memory module?
This memory module operates at 1.2V, which helps in reducing power consumption and heat generation in your device.
Will this work if my laptop's current RAM is 2133MHz?
It might work, but both modules would likely run at the slower 2133MHz speed. For guaranteed compatibility and optimal performance, it's often recommended to match the speed of your existing RAM.
Can I use two of these for dual-channel memory?
Yes, if your laptop has two compatible RAM slots, installing two of these modules will enable dual-channel performance.
Is this RAM suitable for Synology NAS devices?
Many users have reported successful installation and operation of this specific Samsung module in various Synology NAS models, including the DS920+ and DS720+, without issues or warnings.
Buying Guide
When you're looking at laptop RAM, you need to match a few key things to your machine. First, check if your laptop uses SODIMM (the smaller sticks) and what DDR generation it needs (DDR4 in this case). Then, look at the speed in MHz and the CAS Latency (CL). Getting these right ensures the RAM works, and ideally, you want to match your existing RAM's speed and latency for the best performance, or at least ensure the new stick isn't slower. This 8GB module is a solid choice for general use, but don't expect miracles if your laptop's processor is ancient.
Capacity (8GB)
This is how much temporary workspace your computer has. Think of it like the size of your desk: 8GB is enough for browsing, documents, and light apps, but if you're a heavy multitasker with lots of programs open, it's like trying to work on a small desk – you'll run out of space fast.
Speed (2666MHz)
This is how fast the RAM can read and write data. Higher numbers mean faster data transfer, which can make your applications feel more responsive. It's like the speed at which you can grab files from your desk; faster means less waiting.
CAS Latency (CL19)
This is the delay between when the CPU requests data from the RAM and when the RAM actually delivers it. Lower numbers are better, meaning less delay. Think of it as how quickly you can react after being asked for something on your desk; CL19 is a standard, acceptable reaction time.
Form Factor (260-pin SODIMM)
This refers to the physical size and pin configuration of the RAM stick. SODIMM is the smaller type used in laptops, while DIMM is for desktops. The 260-pin count is specific to DDR4 SODIMM, so it needs to match your laptop's slot exactly to fit.
Alternatives
If 8GB isn't cutting it, search for 16GB DDR4 SODIMM modules with a speed of 2666MHz or higher and a CAS Latency of CL19 or lower. For gaming or intensive tasks, prioritize lower latency (e.g., CL16) if your system supports it.



