--- product_id: 119676647 title: "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" price: "£52.81" currency: GBP in_stock: true url: https://www.desertcart.co.uk/products/119676647-4gb-ddr4-sdram-memory-module-4-gb-ddr4-sdram-2666 store_origin: GB region: United Kingdom --- # 2666 MHz blazing speed 4GB DDR4 capacity 1.2V low power efficiency 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 **Price:** £52.81 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your memory, upgrade your game! ## Quick Answers - **What is this?** 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 - **How much does it cost?** £52.81 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/119676647-4gb-ddr4-sdram-memory-module-4-gb-ddr4-sdram-2666) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Budget-Savvy Boost:** Premium Crucial quality without the premium price tag—why pay more? - • **Compact Powerhouse:** 260-pin SODIMM form factor fits perfectly in laptops and compact devices. - • **Plug & Play Upgrade:** Easy installation that instantly boosts your device’s responsiveness. - • **Energy-Smart Performance:** Runs efficiently at just 1.2V, keeping your system cool and battery happy. - • **Turbocharge Your Workflow:** Experience seamless multitasking with 2666 MT/s DDR4 speed. ## Overview The Crucial 4GB DDR4 SDRAM module delivers reliable 2666 MHz speed in a compact 260-pin SODIMM form factor, optimized for laptops and small devices. Operating at a low 1.2V voltage, it ensures energy-efficient performance with easy installation. Perfect for professionals seeking a cost-effective memory upgrade that enhances multitasking and system responsiveness. ## Technical Specifications | Specification | Value | |---------------|-------| | Additional Features | Lightweight | | Asin | B07HP78DZ5 | | Best Sellers Rank | #363 in Computer Memory | | Brand | Crucial | | Column Address Strobe Latency | 17 | | Compatible Devices | Laptop | | Customer Reviews | 4.8 4.8 out of 5 stars (4,193) 4.8 out of 5 stars | | Data Transfer Rate | 42664 Megabits Per Second | | Form Factor | 260 pin_USO-DIMM | | Global Trade Identification Number | 00649528787286 | | Item Weight | 8 Grams | | 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 Pins | 260 | | Ram Memory Technology | DDR4 | | Ram Size | 4 GB | | Unit Count | 1.0 Count | | Upc | 649528787286 064952878728 | | 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 ![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) ![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) ![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) ![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) ![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) ## 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, Sí, 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 ## 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.co.uk/products/119676647-4gb-ddr4-sdram-memory-module-4-gb-ddr4-sdram-2666](https://www.desertcart.co.uk/products/119676647-4gb-ddr4-sdram-memory-module-4-gb-ddr4-sdram-2666) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-08*