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🚀 Upgrade your laptop’s brainpower — because slow is so last decade!
The Crucial 16GB DDR4 PC4-21300 SODIMM is a high-performance 260-pin memory module running at 2666 MHz with CL19 latency. Designed for laptops, it offers a reliable, energy-efficient upgrade that dramatically improves multitasking and overall system responsiveness. Backed by Crucial’s lifetime warranty and AMD Ryzen validation, it’s the perfect plug-and-play solution to future-proof your mobile productivity.









| ASIN | B071KP8CGJ |
| Additional Features | nv: AMD Validation^AMD Ryzen | Company Program^Crucial | Component Configuration^x8 based | Configuration^2048Meg x 64 | DDR Timings^CL=19 | DIMM Type^Unbuffered | Density^16GB | Error Checking^NON-ECC | Megabytes^16384 | Memory Type^DDR4 PC4-21300 | Module Rank^Dual Ranked | Package^260-pin SODIMM | Platform Category^DDR4 | Speed^DDR4-2666 | Voltage^1.2V | VolumeDiscountBucket^LOW |
| Best Sellers Rank | #356 in Computer Memory |
| Brand | Crucial |
| Built-In Media | DDR4 Laptop DRAM |
| Column Address Strobe Latency | 17 |
| Compatible Devices | Laptop |
| Computer Memory Size | 16 GB |
| Customer Reviews | 4.8 out of 5 stars 4,750 Reviews |
| Data Transfer Rate | 2666 Megabits Per Second |
| Form Factor | SO-DIMM |
| Global Trade Identification Number | 00649528780140 |
| Item Type Name | Crucial 16GB Single DDR4 2666 MT/s (PC4-21300) DR x8 SODIMM 260-Pin Memory - CT16G4SFD8266 |
| Item Weight | 9.07 g |
| Manufacturer | Crucial Technology |
| Memory Form Factor | SODIMM |
| Memory Generation | DDR4 |
| Memory Speed | 2666 MHz |
| Mfr Part Number | CT16G4SFD8266 |
| Model Name | CT16G4SFD8266 |
| Model Number | CT16G4SFD8266 |
| Number of Pins | 260 |
| RAM Memory Technology | DRAM |
| RAM Size | 16 GB |
| Special Feature | nv: AMD Validation^AMD Ryzen | Company Program^Crucial | Component Configuration^x8 based | Configuration^2048Meg x 64 | DDR Timings^CL=19 | DIMM Type^Unbuffered | Density^16GB | Error Checking^NON-ECC | Megabytes^16384 | Memory Type^DDR4 PC4-21300 | Module Rank^Dual Ranked | Package^260-pin SODIMM | Platform Category^DDR4 | Speed^DDR4-2666 | Voltage^1.2V | VolumeDiscountBucket^LOW Special Feature nv: AMD Validation^AMD Ryzen | Company Program^Crucial | Component Configuration^x8 based | Configuration^2048Meg x 64 | DDR Timings^CL=19 | DIMM Type^Unbuffered | Density^16GB | Error Checking^NON-ECC | Megabytes^16384 | Memory Type^DDR4 PC4-21300 | Module Rank^Dual Ranked | Package^260-pin SODIMM | Platform Category^DDR4 | Speed^DDR4-2666 | Voltage^1.2V | VolumeDiscountBucket^LOW See more |
| UPC | 696551661687 649528780140 |
| Unit Count | 1.0 Count |
| Voltage | 1.2 Volts |
| Warranty Description | Limited lifetime warranty |
O**O
Working flawlessly
It took a little trick to crack open my laptop, but installing the Crucial 16GB, 260-pin SODIMM was super easy. After the installation, my laptop became much more powerful. Good quality and compatibility.
M**K
Greatly improved performance of Motile M141 from Walmart
I bought a travel laptop (Motile M141 manufactured Sept 2019, purchased on sale December 2019 from Walmart) a great value but a little slow in processing speed with only 4 GB RAM. After researching and getting conflicting information as to whether this machine would accept only 8 GB RAM or would work with 16 GB RAM, I purchased the Crucial 16 GB. Plug and play, easy install with only 6 screws to remove on the Motile housing, checked the system information after turning on the machine and find that it is reading the 16 GB RAM and able to utilize 13.9 GB. Processing speed is excellent now. I am not a gamer and am not using this laptop for memory-intensive photo or video, so haven't got any feedback for you in that regard. I am using this laptop mainly for invoicing, email and documents. Not a techy person but OK with tools, the switch took only about 5 minutes start to finish and was not difficult to do myself. Highly recommend for this application.
A**R
Works with Synology DS423+
I bought this to improve upon the laughable 2gb of ram built into the synology DS423+ and it seems to be working great! I had to look at the instructions on how to insert it because I've never used a NAS or this type of ram stick but it was super easy once I looked it up. I can't speak to performance since I didn't use the NAS before installing this, but it shows up and hasn't had any issues in the month or so I've been using it. Would definitely recommend for the DS423+ for a fraction of the price of the Synology branded ram.
A**N
Great company, great product, great results
Popped right in and worked exactly as needed and described. No laptop should ever be sold with 4GB of Ram - this made that laptop zip right along - Great product
S**3
Matched perfectly with a 16GB Samsung 2666 DDR4 SODIMM in ASUS ROG GU501GM
I was nervous about mixing this with the 16GB Samsung DDR4 2666 SODIMM in my new ASUS ROG GU501GM. Back when I use to build computers, we had to buy matched memory modules to achieve Dual Channel operation. The original in my system was a Samsung with a speed of 2666Mhz, and a latency of 19. Everything looked like they should match, but I was still nervous about it. I have replaced the original .M2 128GB SATA drive with a Samsung 512GB NVME drive, and the Hybrid 1TB drive with a Samsung 1TB SSD. The computer incrementally increased performance, with each of the additions, but still wasn't where I thought it should be. Ordered this chip set, and with Prime, installed it two days after the order date. WOW!! Dual Channel!!! The first two additions to the ASUS were nice incremental changes, but the speed from 32GB Dual Channel is amazing, Everything is incredibly fast. I can't claim that this was THE fix, but with everything else, the only thing that appeared to me to be the bottleneck was the single channel RAM. That being said, the Crucial RAM was a perfect match for my Samsung 16GB RAM stick that was factory installed by ASUS. I am extremely happy with the results, and would recommend this RAM chip to anyone that wants to complete their system!
A**Y
Works as expected with Synology NAS
Purchased for use in a Synology DS920+ per internet guides stating this particular sku was compatible. Installation was quick and easy and the NAS booted up with no problems and now shows 20GB system RAM.
M**N
Product quality
I've upgraded my Lenovo Ideapad Core I3 laptop from 8GB to 16GB RAM upon the arrival of it on Sat. It works perfectly now. Used to be sooo slow. Many thanks! The only reason I rated it 4 rather than 5 was that a 8GB ram was mistakenly shipped, but the seller acted so quickly to send the correct. I know its a forgiven error that happens
B**U
Confiable
Instalación muy sencilla y buena calidad.
C**S
bon produit
correspond a la description, fonctionne tres bien
S**.
Good quality for a good price
Excellent quality. Easy to install. Work perfectly with my laptop Lenovo Yoga 520 14IKB. It increased considerably the speed of my computer. I recommend this product.
J**O
funciona
eu comprei para usar programas de edição de imagens, mas acho que minha placa de vídeo também não está ajudando muito, mas melhorou o desempenho
M**E
Very useful and easy installation
The storage RAM was delivered earlier than committed time and was really easy to install. Once it was installed it got configured very fast and started working in laptop.
A**A
اصليه وممتازه
مطابقه للوصف
Trustpilot
2 months ago
2 weeks ago