--- product_id: 229430420 title: "Crucial RAM CT8G4SFRA266 8GB DDR4 2666MHz CL19 Laptop Memory" brand: "crucial" price: "44604₫" currency: VND in_stock: false reviews_count: 13 url: https://www.desertcart.vn/products/229430420-crucial-ram-ct8g4sfra266-8gb-ddr4-2666mhz-cl19-laptop-memory store_origin: VN region: Vietnam --- # 2666 MHz high-speed DDR4 30% increased bandwidth 40% reduced power consumption Crucial RAM CT8G4SFRA266 8GB DDR4 2666MHz CL19 Laptop Memory **Brand:** crucial **Price:** 44604₫ **Availability:** ❌ Out of Stock ## Summary > ⚡ Upgrade your laptop’s brainpower — don’t get left behind! ## Quick Answers - **What is this?** Crucial RAM CT8G4SFRA266 8GB DDR4 2666MHz CL19 Laptop Memory by crucial - **How much does it cost?** 44604₫ with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/229430420-crucial-ram-ct8g4sfra266-8gb-ddr4-2666mhz-cl19-laptop-memory) ## Best For - crucial enthusiasts ## Why This Product - Trusted crucial brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Simplicity:** Effortless installation with anti-static packaging—upgrade your laptop in minutes. - • **Blazing Fast 2666 MHz DDR4:** Experience seamless multitasking and gaming with lightning-quick memory speeds. - • **Energy-Efficient Performance:** Cut power usage by up to 40%, keeping your laptop cooler and battery lasting longer. - • **Proven Reliability & Longevity:** Trusted by thousands with a 4.7-star rating and backed by a limited lifetime warranty. - • **Boosted Bandwidth for Next-Gen CPUs:** Unlock up to 30% more data throughput optimized for modern processors. ## Overview The Crucial CT8G4SFRA266 is an 8GB DDR4 SO-DIMM laptop memory module running at 2666 MHz with CL19 latency. It delivers up to 30% increased bandwidth and reduces power consumption by 40%, optimized for next-generation processors. Lightweight and easy to install, it’s a reliable upgrade backed by a limited lifetime warranty and a strong 4.7-star user rating. ## Description Buy Review: It can work with Synology - I bought an 8GB RAM (part number: CT8G4SFRA266 2666MHz CL19 ) to extend the RAM of my Synology DS220+ NAS. Although Synology says the system supports up to 6 GB of RAM (2GB is included in the original box), the system actually supports more than that. You can add at least another 16GB of RAM to use as a cache to boost up the performance. I have read the previous comments – some claimed that CT8G4SFRA266 does not fit with Synology. This is not true. Mine works very well on DS220+. There are two possibilities why some people found it was not working: 1. They didn't correctly insert the RAM. You will need to first push the RAM very hard until hearing a clicking before lowering the RAM to sit on the RAM slot. There are many posts online where people claim the RAM doesn't work just because they didn't currently insert the RAM. 2. There are different variants of the Crucial memory "FRA266". Upon receiving the RAM, you will find that the RAM has another four digitals part number printed on the tag. Mine is shown in the photo, which is C8FR. This means the RAM is built using 8x 1GB memory cells, where both sides of the RAM have memory cells. This will work on Synology. This part number can also be C8FJ, which will also work too. However, if this part number is C4FE, it means the RAM is built using 4x 2GB memory cells, where the memory cells are sodered on just one side of the RAM. In this case, it won't be compatible with Synology. Unfortunately, you will not get to see this part number until you receive the RAM. I suspect this applies to the 16GB RAM, too, as there are some people online saying it works for Synology while others saying it doesn't. Overall, I am pleased with this purchase. Review: Great piece of kit - I brought this RAM one stick 16GB at 2666MHZ on the 1 of January 2021. I used it in conjuction with a single 8GB RAM already installed on my Gaming laptop. Nearly two years later and still going strong. I still get 60+FPS on games even though I use two different types of RAM sizes. Gaming performance never suffered. Its a plug and play type of kit, just install it into the memory banks and you're good to go. It came in anti static packaging so no need to worry about that like other sellers. Just ensure that you get that right type for your PC DDR4 and speed 2666MHZ. If your current ram is slower like 2400MHZ then your PC will automatically downclock the RAM to 2400MHZ or to whatever the slowest speed of your RAM is. So it is vital that your get the right type and right speed for your PC for value for money. Hope this helps. ## Features - Speeds up to 3200 MT/s and faster data rates are expected to be available as DDR4 technology matures - Increase bandwidth by up to 30% - Reduce power consumption by up to 40% - Faster burst access speeds for improved sequential data throughout - Optimized for next generation processors and platforms ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08C56KXQJ | | Best Sellers Rank | 14,862 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 56 in Computer Memory | | Brand Name | Crucial | | Column Address Strobe Latency | CL19 | | Compatible Devices | Laptop | | Customer Reviews | 4.8 4.8 out of 5 stars (24,525) | | Data Transfer Rate | 34652.48 Megabits Per Second | | Form Factor | SO-DIMM | | Global Trade Identification Number | 00649528903488 | | Item Weight | 0.3 Ounces | | Manufacturer | Crucial | | Manufacturer Part Number | CT8G4SFRA266 | | Memory Form Factor | SODIMM | | Memory Generation | DDR4 | | Memory Speed | 2666 MHz | | Model Name | Crucial 2666 MT/s SODIMMS | | Model Number | CT8G4SFRA266 | | Number of Pins | 260 | | Product Features | Non Ecc | | Product Warranty | Limited Lifetime Warranty | | RAM Memory Technology | SO-DIMM | | RAM Size | 8 GB | | UPC | 649528903488 | | Unit Count | 1.0 count | | Voltage | 1.2 Volts | ## Product Details - **Brand:** Crucial - **Compatible devices:** Laptop - **Computer memory size:** 8 GB - **Memory speed:** 2666 MHz - **RAM memory technology:** SO-DIMM ## Images ![Crucial RAM CT8G4SFRA266 8GB DDR4 2666MHz CL19 Laptop Memory - Image 1](https://m.media-amazon.com/images/I/71XLwmTSEHL.jpg) ![Crucial RAM CT8G4SFRA266 8GB DDR4 2666MHz CL19 Laptop Memory - Image 2](https://m.media-amazon.com/images/I/71fWHPmgX9L.jpg) ![Crucial RAM CT8G4SFRA266 8GB DDR4 2666MHz CL19 Laptop Memory - Image 3](https://m.media-amazon.com/images/I/41NyiuH8NKL.jpg) ![Crucial RAM CT8G4SFRA266 8GB DDR4 2666MHz CL19 Laptop Memory - Image 4](https://m.media-amazon.com/images/I/515CQkZ+zdL.jpg) ![Crucial RAM CT8G4SFRA266 8GB DDR4 2666MHz CL19 Laptop Memory - Image 5](https://m.media-amazon.com/images/I/71pM56uEvSL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ It can work with Synology *by T***. on 22 April 2022* I bought an 8GB RAM (part number: CT8G4SFRA266 2666MHz CL19 ) to extend the RAM of my Synology DS220+ NAS. Although Synology says the system supports up to 6 GB of RAM (2GB is included in the original box), the system actually supports more than that. You can add at least another 16GB of RAM to use as a cache to boost up the performance. I have read the previous comments – some claimed that CT8G4SFRA266 does not fit with Synology. This is not true. Mine works very well on DS220+. There are two possibilities why some people found it was not working: 1. They didn't correctly insert the RAM. You will need to first push the RAM very hard until hearing a clicking before lowering the RAM to sit on the RAM slot. There are many posts online where people claim the RAM doesn't work just because they didn't currently insert the RAM. 2. There are different variants of the Crucial memory "FRA266". Upon receiving the RAM, you will find that the RAM has another four digitals part number printed on the tag. Mine is shown in the photo, which is C8FR. This means the RAM is built using 8x 1GB memory cells, where both sides of the RAM have memory cells. This will work on Synology. This part number can also be C8FJ, which will also work too. However, if this part number is C4FE, it means the RAM is built using 4x 2GB memory cells, where the memory cells are sodered on just one side of the RAM. In this case, it won't be compatible with Synology. Unfortunately, you will not get to see this part number until you receive the RAM. I suspect this applies to the 16GB RAM, too, as there are some people online saying it works for Synology while others saying it doesn't. Overall, I am pleased with this purchase. ### ⭐⭐⭐⭐⭐ Great piece of kit *by M***I on 16 November 2022* I brought this RAM one stick 16GB at 2666MHZ on the 1 of January 2021. I used it in conjuction with a single 8GB RAM already installed on my Gaming laptop. Nearly two years later and still going strong. I still get 60+FPS on games even though I use two different types of RAM sizes. Gaming performance never suffered. Its a plug and play type of kit, just install it into the memory banks and you're good to go. It came in anti static packaging so no need to worry about that like other sellers. Just ensure that you get that right type for your PC DDR4 and speed 2666MHZ. If your current ram is slower like 2400MHZ then your PC will automatically downclock the RAM to 2400MHZ or to whatever the slowest speed of your RAM is. So it is vital that your get the right type and right speed for your PC for value for money. Hope this helps. ### ⭐⭐⭐⭐⭐ Works on iMac Retina 5K 27-inch - 2020 *by A***H on 25 January 2022* I upgraded from 8GB to 32GB (2x16GB). This wasn't the official recommended upgrade kit for the iMac Retina 5K 27-inch - 2020. However the spec was exactly the same and the price was much cheaper. Therefore, I decided to give it a go and I am really pleased I did. I watched a video on YouTube and it took less than 5 minutes to fit. The iMac has a little container on the back with a door that you release using a button under the power lead. Press the button, pop the old memory modules out, pop the new ones in - job done. I'm so please I upgraded. ## Frequently Bought Together - Crucial RAM 8GB DDR4 2666 MHz CL19 Laptop Memory CT8G4SFRA266 - Crucial RAM 8GB DDR4 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory CT8G4SFRA32A - MSI Computer GF63, NVIDIA GeForce GTX 1650 Graphics, 15.6" 8GB 256GB Intel Core i5-10300H X4 2.5GHz Win10, Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/229430420-crucial-ram-ct8g4sfra266-8gb-ddr4-2666mhz-cl19-laptop-memory](https://www.desertcart.vn/products/229430420-crucial-ram-ct8g4sfra266-8gb-ddr4-2666mhz-cl19-laptop-memory) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-14*