--- product_id: 119676647 title: "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" brand: "crucial" price: "β‚Ή 9063" currency: INR in_stock: true reviews_count: 13 category: "Crucial" url: https://www.desertcart.in/products/119676647-crucial-4gb-ddr4-sdram-memory-module-4-gb-ddr4-sdram store_origin: IN region: India --- # 2666 MHz blazing speed 4GB DDR4 capacity 1.2V low power efficiency 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 **Brand:** crucial **Price:** β‚Ή 9063 **Availability:** βœ… In Stock ## Summary > πŸš€ Upgrade your memory, upgrade your game! ## Quick Answers - **What is this?** 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 by crucial - **How much does it cost?** β‚Ή 9063 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/119676647-crucial-4gb-ddr4-sdram-memory-module-4-gb-ddr4-sdram) ## 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 - β€’ **Compact Yet Mighty:** 260-pin SODIMM form factor fits perfectly in laptops and compact devices without compromise. - β€’ **Plug & Play Upgrade:** Easy installation with instant recognitionβ€”no hassle, just pure performance uplift. - β€’ **Trusted by Thousands:** 4.8-star rating from over 4,200 users proves this is the go-to affordable RAM upgrade. - β€’ **Energy-Smart Operation:** Runs at an efficient 1.2V to keep your system cool and power bills low. - β€’ **Turbocharge Your NAS Performance:** Boost your Synology or laptop with 2666 MT/s DDR4 speed for seamless multitasking. ## Overview The Crucial 4GB DDR4 SDRAM module delivers a high-speed 2666 MHz data rate in a compact 260-pin SODIMM form factor, optimized for laptops and NAS devices. Operating at a low 1.2V voltage, it ensures energy-efficient performance with a reliable single-rank, non-ECC design. Widely praised for boosting system responsiveness and multitasking capabilities, this lightweight memory upgrade is a cost-effective solution trusted by thousands of professionals seeking smooth, lag-free computing. ## Description Specifications Mfr Part Number: CT4G4SFS8266 Type: DDR4 SODIMM capacity: 4GB speed: pc4-21300 2666MHz size & bit: 512M x 64 pins: 260pin ECC: no registered: no single rank x8 CL 19, 1.2V Review: Great unofficial RAM for your Synology 220+ NAS - My current Synology 220+ RAM usage was constantly hovering around 70-80%. I started researching to see if any additional RAM could be added. You have a few options. You can go the Synology route and end up paying $90 for a 4GB stick. OR, you could purchase one of these for a fraction of the cost. Be aware that per Synology - you will void your warranty if you go with a non-Synology RAM. I took a leap of faith after much research and guess what?! This works perfectly. Installation was a breeze and my NAS recognized it immediately. It's been running so far for about a month with no issues. The best part? My RAM usage is now between 20-30%. Much better. I notice the OS runs a lot more smoothly as well now since the RAM wasn't being almost maxed out constantly. This is definitely worth the purchase if you would like to expand your RAM. Do your research. There are a lot of posts on Reddit that share the same success that I had. You could even go higher and get yourself a 8, 16 or 32GB stick. The 4GB was more than enough for what I use my NAS for (Plex and storage). Review: Excellent, Works with DS224+ - I had been looking to add RAM to my synology DS224+ and found this kit after erroneously buying a non-compatable stick. This allowed me to save around $60 without buying Synologys rebranded memory while retaining its compatibility. I had no error messages after installing and my system loads photos significantly faster. I've heard some say that this can void your warranty but my DS224+ manual states that the warranty will only be void if the RAM caused the issue. Maybe i'm living in the fast lane but i think this is a non-issue ## Features - 4GB DDR4 2666 MT/s (PC4-21300) CL19 SR x8 SODIMM 260pin ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07HP78DZ5 | | Additional Features | Lightweight | | Best Sellers Rank | #338 in Computer Memory | | Brand | Crucial | | Column Address Strobe Latency | 17 | | Compatible Devices | Laptop | | Computer Memory Size | 4 GB | | Customer Reviews | 4.8 out of 5 stars 4,206 Reviews | | Data Transfer Rate | 42664 megabits_per_second | | Form Factor | 260 pin_USO-DIMM | | Global Trade Identification Number | 00649528787286 | | Item Weight | 8 g | | Manufacturer | Crucial | | Memory Form Factor | SODIMM | | Memory Generation | DDR4 | | Memory Speed | 2666 MHz | | Mfr Part Number | CT4G4SFS8266 | | Model Name | Trident | | Model Number | CT4G4SFS8266 | | Number of Items | 1 | | Number of Packs | 1 | | Number of Pins | 260 | | RAM Memory Technology | DDR4 | | RAM Size | 4 GB | | Special Feature | Lightweight | | UPC | 649528787286 064952878728 | | Unit Count | 1 Count | | Voltage | 12 volts | | Warranty Description | Limited Warranty | ## Product Details - **Brand:** Crucial - **Compatible Devices:** Laptop - **Computer Memory Size:** 4 GB - **Memory Speed:** 2666 MHz - **RAM Memory Technology:** DDR4 ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/61FsaYbk3UL.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/710w79j715L.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/61-737PUDOL.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/61phcwp7f7L.jpg) ![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 - Image 5](https://m.media-amazon.com/images/I/71agpnji7IL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: T4g4sfs8266 compatible with synology ds220+?** A: Thank you for your inquiry. We see that we do not have guaranteed compatible memory available for Synology DS220+. There are a lot of considerations when choosing the correct memory for your system, including memory type, speeds, densities, and more. We request you to refer owners manual of your system and ensure motherboard specifications are matching with CT4G4SFS8266 memory. Regards. **Q: is this compatable with asus q524u** A: we would like to inform you that the RAM CT4G4SFS8266 is compatible with q524uq, q524uqk. **Q: Es un set de 2x4gb de memoria ram?el titulo lo hace difuso** A: Hola Sergio, Gracias por su pregunta, SΓ­, es el kit de 8G con 2X4Gb de RAM. hay dos modules de 4GB. **Q: Is this compatible with a toshiba satellite L455D-S5976?** A: Thank you for choosing Crucial . We find CT4G4SFS8266 is not compatible with Toshiba Satellite L455D-S5976 ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great unofficial RAM for your Synology 220+ NAS *by T***O on March 6, 2022* My current Synology 220+ RAM usage was constantly hovering around 70-80%. I started researching to see if any additional RAM could be added. You have a few options. You can go the Synology route and end up paying $90 for a 4GB stick. OR, you could purchase one of these for a fraction of the cost. Be aware that per Synology - you will void your warranty if you go with a non-Synology RAM. I took a leap of faith after much research and guess what?! This works perfectly. Installation was a breeze and my NAS recognized it immediately. It's been running so far for about a month with no issues. The best part? My RAM usage is now between 20-30%. Much better. I notice the OS runs a lot more smoothly as well now since the RAM wasn't being almost maxed out constantly. This is definitely worth the purchase if you would like to expand your RAM. Do your research. There are a lot of posts on Reddit that share the same success that I had. You could even go higher and get yourself a 8, 16 or 32GB stick. The 4GB was more than enough for what I use my NAS for (Plex and storage). ### ⭐⭐⭐⭐⭐ Excellent, Works with DS224+ *by G***G on February 14, 2024* I had been looking to add RAM to my synology DS224+ and found this kit after erroneously buying a non-compatable stick. This allowed me to save around $60 without buying Synologys rebranded memory while retaining its compatibility. I had no error messages after installing and my system loads photos significantly faster. I've heard some say that this can void your warranty but my DS224+ manual states that the warranty will only be void if the RAM caused the issue. Maybe i'm living in the fast lane but i think this is a non-issue ### ⭐⭐⭐⭐⭐ Works Great in my NAS *by G***. on August 10, 2026* Compatible with my Synology DS225+ NAS device and definitely improves the performance with interacting with the NAS through the DiskStation software. Apparently, although Synology claims that this device only supports 4GB of additional RAM, people have added up to 16GB without any problems. I might have bought a different stick had I known that, but at this point, the deed is done. Even the 4GB helps. ## 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.in/products/119676647-crucial-4gb-ddr4-sdram-memory-module-4-gb-ddr4-sdram](https://www.desertcart.in/products/119676647-crucial-4gb-ddr4-sdram-memory-module-4-gb-ddr4-sdram) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-09-15*