--- product_id: 186387644 title: "Crucial RAM 4GB DDR4 2666 MHz CL19 Laptop Memory CT4G4SFS8266" brand: "crucial" price: "2.13 DT" currency: TND in_stock: false reviews_count: 13 url: https://www.desertcart.tn/products/186387644-crucial-ram-4gb-ddr4-2666-mhz-cl19-laptop-memory-ct4g4sfs8266 store_origin: TN region: Tunisia --- # 3200 MHz blazing speed Plug & play easy install 10-year Micron-backed warranty Crucial RAM 4GB DDR4 2666 MHz CL19 Laptop Memory CT4G4SFS8266 **Brand:** crucial **Price:** 2.13 DT **Availability:** ❌ Out of Stock ## Summary > 🚀 Upgrade your desktop, upgrade your hustle! ## Quick Answers - **What is this?** Crucial RAM 4GB DDR4 2666 MHz CL19 Laptop Memory CT4G4SFS8266 by crucial - **How much does it cost?** 2.13 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/186387644-crucial-ram-4gb-ddr4-2666-mhz-cl19-laptop-memory-ct4g4sfs8266) ## 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 - • **Effortless Upgrade:** No tech skills needed—install in minutes with clear Crucial guides and seamless compatibility. - • **Trusted by Thousands:** Join over 6,900+ users who rated it 4.4 stars for unbeatable value and performance. - • **Rock-Solid Reliability:** Built by Micron with 42 years of memory expertise and backed by a decade-long warranty. - • **Boost Productivity Instantly:** Say goodbye to lag—perfect for photo editing, video rendering, and heavy multitasking. - • **Blazing Fast DDR4 Performance:** Experience ultra-responsive multitasking with 3200 MT/s speed and CL22 latency. ## Overview The Crucial 8GB DDR4 3200MHz CL22 desktop RAM module delivers a significant performance boost with industry-standard 288-pin UDIMM design. Engineered by Micron, it ensures reliable, fast, and efficient multitasking for professional-grade applications, backed by a 10-year warranty and easy installation for all skill levels. ## Description Buy Crucial RAM 4GB DDR4 2666 MHz CL19 Laptop Memory CT4G4SFS8266 online at low price in India on desertcart.in. Check out Crucial RAM 4GB DDR4 2666 MHz CL19 Laptop Memory CT4G4SFS8266 reviews, ratings, features, specifications and browse more Crucial products online at best prices on desertcart.in. Review: Decent RAM for decent price - This 4GB RAM is 2666Mhz SDRAM with latency of CAS 19. It can function as 2400Mhz RAM with latency of CAS 17 in case you already have a 2400Mhz RAM in another slot or your bus don't support 2666Mhz as in case of AMD laptop CPUs which only upto support 2400Mhz. You can install this RAM in your laptop only if you have an extra empty SODIMM slot or if your current RAM is damaged and you want to replace it. Many laptops nowadays come with soldered RAM which can't be removed or upgraded and in such cases, this RAM is not to be bought. Also, one must take care that the RAM slot is DDR4 and not any other type as DDR4 RAM will not fit in DDR3 or DDR2 slots. Dual channel support- There is a misconception that dual channel requires 2 identical RAM of same size, same brand and latency. This is only partly true. One van easily install 4Gb RAM along with another 8GB RAM (or even 16GB RAM) and still get a partial dual channel mode called "FLEX" channel where 4GB from both RAM sticks will be in dual channel while the extra RAM will be in single channel. The performance difference between dual channel and flex channel is minimal at about 2% FPS reduction when playing games. But the cost difference is about Rs 1300. If one doesn't need 16GB RAM, then installing 8+4 = 12GB RAM is enough and one doesn't have to fear loss of dual channel and save some money in the process. I myself have installed this RAM along with another 8GB SAMSUNG RAM. One has to only ensure that that CAS latency and Mhz speed to be identical to ensure maximum performance in flex channel mode. The performance of Crucial RAM and SAMSUNG RAM appears identical in all the benchmark tests I have run. The only negative is that Crucial only offers 3 year warranty whereas companies like ADATA offers 10 year warranty. Review: Perfect - The ram is working flawlessly. No doubt about it. ## Features - 4GB, DDR4 RAM - Memory Speed-2666MHz /PC4-21300 /CL19 - ECC Type = Non-ECC, Form Factor = SODIMM, Pin Count = 260-pin, PC Speed = PC4-21300, Voltage = 1.2V, Rank and Configuration = 1Rx8 - Improve your system's responsiveness, run apps faster and multitask with ease - Install with ease; no computer skills required How-to guides available at Crucial - Compatibility assurance when using the Crucial System Scanner or Crucial Advisor Tool - Crucial 10-year limited warranty - Country of Origin: United States. - Drive form factor: 2.5inch and M.2, Drive Interface: SATA/PCIe - For performance or compatibility related issues customers will have to reach out to Crucial's technical support. For more details, kindly refer to our Refund Policy page. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07HP78DZ5 | | Best Sellers Rank | #50,843 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #370 in Memory | | Box Contents | DRAM,,,,,,,,,,,,,, | | Brand | Crucial | | Brand Name | Crucial | | Column Address Strobe Latency | 19 | | Compatible Devices | Laptop | | Computer Memory Size | 4 GB | | Customer Reviews | 4.5 out of 5 stars 4,204 Reviews | | Form Factor | SO-DIMM | | Global Trade Identification Number | 00649528787286 | | Importer Contact Information | RASHI PERIPHERALS PRIVATE LIMITED | | Item Type Name | Memory | | Item Weight | 8 Grams | | Manufacturer | MICRON CONSUMER PRODUCTS GROUP(SINGAPORE)A DIVISION OF MICRON SEMICONDUCTOR ASIA OPERATIONSPTE. LTD.1 NORTH COAST DRIVE,SINGAPORE 757432, Micron Technology | | Manufacturer Contact Information | MICRON CONSUMER PRODUCTS GROUP(SINGAPORE)A DIVISION OF MICRON SEMICONDUCTOR ASIA OPERATIONSPTE. LTD.1 NORTH COAST DRIVE,SINGAPORE 757432 | | Manufacturer Part Number | CT4G4SFS8266 | | Memory Form Factor | SODIMM | | Memory Generation | DDR4 | | Memory Speed | 2666 MHz | | Model Name | DDR4 DIMM | | Model Number | CT4G4SFS8266 | | Number Of Pins | 260 | | Number of Items | 1 | | Number of Packs | 1 | | Packer Contact Information | MICRON CONSUMER PRODUCTS GROUP(SINGAPORE)A DIVISION OF MICRON SEMICONDUCTOR ASIA OPERATIONSPTE. LTD.1 NORTH COAST DRIVE,SINGAPORE 757432 | | ProcessorSpeed | 42664 Megabits Per Second | | Product Features | Faster burst access speeds | | RAM Memory Technology | DDR4 | | RAM Size | 4 GB | | Special Feature | Faster burst access speeds | | UPC | 649528787286 064952878728 | | Unit Count | 1 Count | | Voltage | 12 Volts | ## Product Details - **Brand:** Crucial - **Compatible Devices:** Laptop - **Computer Memory Size:** 4 GB - **Memory Speed:** 2666 MHz - **RAM Memory Technology:** DDR4 ## Images ![Crucial RAM 4GB DDR4 2666 MHz CL19 Laptop Memory CT4G4SFS8266 - Image 1](https://m.media-amazon.com/images/I/61FsaYbk3UL.jpg) ![Crucial RAM 4GB DDR4 2666 MHz CL19 Laptop Memory CT4G4SFS8266 - Image 2](https://m.media-amazon.com/images/I/710w79j715L.jpg) ![Crucial RAM 4GB DDR4 2666 MHz CL19 Laptop Memory CT4G4SFS8266 - Image 3](https://m.media-amazon.com/images/I/61-737PUDOL.jpg) ![Crucial RAM 4GB DDR4 2666 MHz CL19 Laptop Memory CT4G4SFS8266 - Image 4](https://m.media-amazon.com/images/I/61phcwp7f7L.jpg) ![Crucial RAM 4GB DDR4 2666 MHz CL19 Laptop Memory CT4G4SFS8266 - Image 5](https://m.media-amazon.com/images/I/71agpnji7IL.jpg) ## Questions & Answers **Q: I have 4gb ddr4 2400mhz , this ram is 2666mhz it will work on my laptop with 2400mhz?** A: It will work. But the clock will be set to 2400Mhz from 2666Mhz.. It is recommended to use same clock RAMs **Q: Will it be suitable for HP Notebook - 15-bw036nr??** A: Yes It will support HP notebook. Just make sure to check if your notebook requires a drr3 ram or a ddr4. If it requires a ddr3 ram then this won't support. **Q: Will it be suitable for acer aspire 3 a315-53 p4my ?** A: You can check that on crucial company website by putting in your laptop detail, the site will provide you a direct link to amazon too **Q: Is it compatible for HP 450 core i3?** A: No. You need ddr3 ram. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Decent RAM for decent price *by B***R on 27 June 2020* This 4GB RAM is 2666Mhz SDRAM with latency of CAS 19. It can function as 2400Mhz RAM with latency of CAS 17 in case you already have a 2400Mhz RAM in another slot or your bus don't support 2666Mhz as in case of AMD laptop CPUs which only upto support 2400Mhz. You can install this RAM in your laptop only if you have an extra empty SODIMM slot or if your current RAM is damaged and you want to replace it. Many laptops nowadays come with soldered RAM which can't be removed or upgraded and in such cases, this RAM is not to be bought. Also, one must take care that the RAM slot is DDR4 and not any other type as DDR4 RAM will not fit in DDR3 or DDR2 slots. Dual channel support- There is a misconception that dual channel requires 2 identical RAM of same size, same brand and latency. This is only partly true. One van easily install 4Gb RAM along with another 8GB RAM (or even 16GB RAM) and still get a partial dual channel mode called "FLEX" channel where 4GB from both RAM sticks will be in dual channel while the extra RAM will be in single channel. The performance difference between dual channel and flex channel is minimal at about 2% FPS reduction when playing games. But the cost difference is about Rs 1300. If one doesn't need 16GB RAM, then installing 8+4 = 12GB RAM is enough and one doesn't have to fear loss of dual channel and save some money in the process. I myself have installed this RAM along with another 8GB SAMSUNG RAM. One has to only ensure that that CAS latency and Mhz speed to be identical to ensure maximum performance in flex channel mode. The performance of Crucial RAM and SAMSUNG RAM appears identical in all the benchmark tests I have run. The only negative is that Crucial only offers 3 year warranty whereas companies like ADATA offers 10 year warranty. ### ⭐⭐⭐⭐⭐ Perfect *by P***M on 25 April 2026* The ram is working flawlessly. No doubt about it. ### ⭐⭐⭐⭐ Good but packaging needs to be more safer. *by A***. on 9 December 2020* Installed without any struggle, but care to be taken whether it sat properly and while removing backpannel. AT THE END , UPDATE OF 16 GB ram Please See Till END. My laptop is hp-bs series with i3 processor. Before it was very difficult to run virtual machine for me, after installation I can run 2 to 3 VMs and many more tasks. I have attached images, slot 1 is manufacturer-assembled, slot 2 is crucial's check them. And latency is different but somehow ok. "Only problem is with Amazon's packaging, it just came in pop-up cover and no carton box... Amazon has to look in this regard" UPDATE: Bought a 16gb ram single stick This works fine Always buy single rank don't waste money in dual rank. (many sellers tell single rank as dual rank...) PS: if you have only one slot in your laptop buy only single rank one if you have dual channel slots then u can buy dual rank then it works fine. I personally experienced this. ## Frequently Bought Together - Crucial 4GB DDR4 SDRAM Memory Module - 4 GB - DDR4 SDRAM - 2666 MHz DDR4-2666/PC4-21300 - 1.20 V - Non-ECC - Unbuffered - 260-Pin - SODIMM, 4GB Single Rank - Synology 2-Bay DiskStation DS224+ (Diskless) - Seagate IronWolf 8TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage – Frustration Free Packaging (ST8000VNZ04/N004) --- ## 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.tn/products/186387644-crucial-ram-4gb-ddr4-2666-mhz-cl19-laptop-memory-ct4g4sfs8266](https://www.desertcart.tn/products/186387644-crucial-ram-4gb-ddr4-2666-mhz-cl19-laptop-memory-ct4g4sfs8266) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-11-08*