--- product_id: 178310998 title: "- DDR4 RAM 4GB 2666MHz PC4-21300 SODIMM Laptop Memory" brand: "a-tech" price: "421.98 DT" currency: TND in_stock: true reviews_count: 9 url: https://www.desertcart.tn/products/178310998-ddr4-ram-4gb-2666mhz-pc4-21300-sodimm-laptop-memory store_origin: TN region: Tunisia --- # 2666MHz blazing speed 4GB DDR4 capacity 1.2V low power efficiency - DDR4 RAM 4GB 2666MHz PC4-21300 SODIMM Laptop Memory **Brand:** a-tech **Price:** 421.98 DT **Availability:** ✅ In Stock ## Summary > 🚀 Upgrade your laptop’s brainpower and never miss a beat! ## Quick Answers - **What is this?** - DDR4 RAM 4GB 2666MHz PC4-21300 SODIMM Laptop Memory by a-tech - **How much does it cost?** 421.98 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/178310998-ddr4-ram-4gb-2666mhz-pc4-21300-sodimm-laptop-memory) ## Best For - a-tech enthusiasts ## Why This Product - Trusted a-tech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Simplicity:** Effortless installation with no technical hassle—get upgraded instantly. - • **Compact SO-DIMM Form Factor:** Designed specifically for laptops, mini PCs, and AIOs to maximize space without compromise. - • **Boost Your Productivity Game:** Expand your memory capacity to handle demanding workflows and stay ahead in your professional hustle. - • **Reliable Long-Term Stability:** Built with premium DRAM components and backed by a limited lifetime warranty for peace of mind. - • **Turbocharge Your Laptop Performance:** Upgrade to 2666MHz DDR4 speed for seamless multitasking and faster app launches. ## Overview The A-Tech DDR4 4GB 2666MHz PC4-21300 SO-DIMM is a high-performance, low-voltage laptop memory module designed to enhance system responsiveness and multitasking. Compatible with select DDR4 SODIMM laptops, mini PCs, and AIOs, it offers plug-and-play installation, premium reliability, and is backed by a limited lifetime warranty. ## Description DDR4 2666MHz SODIMM DDR4 3200MHz SODIMM DDR4 2400MHz SODIMM DDR4 2666MHz DIMM What’s the difference between DDR4 and other types of memory and can I use them interchangeably? No, DDR4 memory is not compatible or interchangeable with other types such as DDR5, DDR3, and so on. Each memory type uses different slot designs, voltages, and architectures, so your system must support the memory type specifically. What’s the difference between DIMM and SO-DIMM memory? DIMM and SO-DIMM represent two different physical sizes of memory. DIMM is the larger type used in standard desktop computers. SO-DIMM is the smaller type used in laptops, mini PCs, and compact systems. They are not interchangeable. What does "Non-ECC" mean and do I need "ECC" memory instead? Non-ECC (non-error correcting) memory is required for most laptops and desktops. ECC is typically only used in servers or workstations and is not interchangeable with Non-ECC memory. If your system doesn’t mention ECC support, you need Non-ECC. How do I know which speed to choose? Each system has its own max supported speed. If the memory is faster than your system allows, it will automatically downclock to that max speed, meaning it's safe to buy faster memory. To confirm the max supported speed, refer to your system's manual Is this compatible with my system or computer? Refer to your system's manual to confirm the supported memory type, capacity, form factor, and ECC support. If you're unsure, contact our support team, we're happy to help you find the exact memory your system needs! is a leading brand of Computer Memory (RAM) based in the . We offer a vast variety of memory products to solve all your memory needs; from servers to desktop PCs to laptops and more! All A-Tech products are rigorously tested to ensure high quality, dependable performance. Upgrade your system with confidence with . Memory (RAM) gives applications a place to temporarily store data which allows your computer to quickly access information. Using multiple programs/applications at once or doing resource intensive activities (such as video/photo editing, gaming, programming and more) can slow down your system as each compete for a limited amount of memory resource. A RAM upgrade can improve performance by expanding your system's memory capacity allowing your computer to take on more while maintaining a fast and smooth experience. There are many types of RAM including RD, SD, DDR, DDR2, DDR3, DDR4, and DDR5, with DDR5 being the newest version. All system’s have their own memory requirements and will only support one of those specific types of RAM. For instance, a laptop that requires DDR4 RAM can only support DDR4 RAM. Each type of RAM has different pin sizes and notch locations meaning a DDR3 RAM module will only fit into a DDR3 RAM slot and so on. Refer to your system’s manual to determine the supported RAM specifications Along with RAM types, there are also different Form Factors or physical sizes of RAM. SODIMM (or SO-DIMM) RAM is used in laptops and notebooks and is also commonly used in select All-in-One (AIO) computers, Mini PCs and NAS systems. DIMM RAM is used in Desktops Computers as well as Workstations and Servers. The two sizes are not interchangeable; a DIMM module will not fit into a system that requires SODIMM RAM and a SODIMM module will not fit into a system that requires DIMM RAM. Non-ECC Unbuffered (or simply Non-ECC): Primarily used in Desktop PCs, Laptops, All-in-One (AIO) computers, & Mini PCs as almost all those system types only support Non-ECC Unbuffered memory ECC Registered: Only used in Servers and select Workstations ECC Load Reduced: Only used in Servers and select Workstations ECC Unbuffered: Only used in Servers and Workstations ECC Fully Buffered: Only used in select Servers that support DDR2 RAM Different ECC types cannot be mixed within the same system, only one type can be used. ## Features - A-Tech 4GB RAM Module, DDR4 SO-DIMM 260-Pin, 2666MHz / 2667MHz PC4-21300 (PC4-2666V) - Non-ECC Unbuffered, JEDEC DDR4 Standard 1.2V Operating Voltage - Compatible with select DDR4 SODIMM capable Laptop, Notebook, Mini PC, and All-in-One (AIO) computer systems. Please verify your system's memory type, form factor, and maximum supported capacity before purchasing - Not compatible with desktop (DIMM), DDR2, DDR3, DDR5, ECC Registered (RDIMM), ECC Load Reduced (LRDIMM), or ECC Unbuffered (ECC UDIMM) memory types - Increases available memory capacity to enhance system responsiveness, application performance, and multitasking capabilities. - Easy plug-and-play installation with no technical expertise required; built with high quality DRAM components and rigorously tested for reliability and long term stability. - Backed by A-Tech's Limited Lifetime Warranty and supported by our dedicated Technical Support team before and after your purchase ## Technical Specifications | Specification | Value | |---------------|-------| | Additional Features | 2666MHz speed, Laptop Compatible, Memory Upgrade, Non-ECC Unbuffered, Plug and Play | | Asin | B07KGN62T1 | | Best Sellers Rank | #20 in Computer Memory | | Brand | A-Tech | | Column Address Strobe Latency | CL19 | | Compatible Devices | All-in-One, Laptop, Mini PC | | Customer Reviews | 4.6 4.6 out of 5 stars (216) 4.6 out of 5 stars | | Data Transfer Rate | 21300 megabytes_per_second | | Form Factor | SO-DIMM | | Item Highlight | Non-ECC PC4-2666V CL19 260-Pin SO-DIMM 1.2V Notebook Computer Memory Upgrade Module | | Item Type Name | Computer RAM Memory | | Item Weight | 9.93 g | | Manufacturer | A-Tech Components | | Memory Form Factor | SODIMM | | Memory Generation | DDR4 | | Memory Speed | 2666 MHz | | Mfr Part Number | AT4G1D4S2666NA0N12V | | Model Name | A-Tech Premium Memory | | Model Number | AT4G1D4S2666NA0N12V | | Number Of Items | 1 | | Number Of Packs | 1 | | Number Of Pins | 204 | | Ram Memory Technology | DDR4 | | Ram Size | 4 GB | | Unit Count | 1 Count | | Voltage | 1.2 volts | | Warranty Description | Limited Lifetime Warranty covering defects in materials and workmanship | ## Product Details - **Brand:** A-Tech - **Compatible Devices:** All-in-One, Laptop, Mini PC - **Computer Memory Size:** 4 GB - **Memory Speed:** 2666 MHz - **RAM Memory Technology:** DDR4 ## Images ![- DDR4 RAM 4GB 2666MHz PC4-21300 SODIMM Laptop Memory - Image 1](https://m.media-amazon.com/images/I/81S+SqMCjdL.jpg) ## Available Options This product comes in different **Computer Memory Size, Memory Speed, Set** options. ## Questions & Answers **Q: What’s the difference between DDR4 and other types of memory and can I use them interchangeably?** A: No, DDR4 memory is not compatible or interchangeable with other types such as DDR5, DDR3, and so on. Each memory type uses different slot designs, voltages, and architectures, so your system must support the memory type specifically. **Q: What’s the difference between DIMM and SO-DIMM memory?** A: DIMM and SO-DIMM represent two different physical sizes of memory. DIMM is the larger type used in standard desktop computers. SO-DIMM is the smaller type used in laptops, mini PCs, and compact systems. They are not interchangeable. **Q: What does "Non-ECC" mean and do I need "ECC" memory instead?** A: Non-ECC (non-error correcting) memory is required for most laptops and desktops. ECC is typically only used in servers or workstations and is not interchangeable with Non-ECC memory. If your system doesn’t mention ECC support, you need Non-ECC. **Q: How do I know which speed to choose?** A: Each system has its own max supported speed. If the memory is faster than your system allows, it will automatically downclock to that max speed, meaning it's safe to buy faster memory. To confirm the max supported speed, refer to your system's manual **Q: Is this compatible with my system or computer?** A: Refer to your system's manual to confirm the supported memory type, capacity, form factor, and ECC support. If you're unsure, contact our support team, we're happy to help you find the exact memory your system needs! ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good Upgrade or Replacement *by on Reviewed in the United States November 8, 2025* Great replacement for a bad SODIMM or a memory upgrade for your laptop. These installed easily and memory tests proved they were reliable. These were used in an HP 15dw laptop and hav proven to work well. A great buy. ### ⭐⭐⭐⭐⭐ Manufactured +3yrs ago? *by on Reviewed in the United States February 13, 2026* Memtest86 said it passed all of the tests. What I found interesting, is that MemTest86 identified this 4GB memory stick as being "Kingston" brand and being manufactured on the 10th week of 2022, despite me purchasing it in Jan 2026... Seems to be working fine in my NUC, though. ### ⭐⭐⭐⭐⭐ Excellent *by on Reviewed in the United States October 11, 2025* Solved my problem. ## Frequently Bought Together - A-Tech 4GB DDR4 2666MHz PC4-21300 (PC4-2666V) CL19 SODIMM 1.2V 260-Pin Non-ECC SO-DIMM Laptop Notebook RAM Memory Module - 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/178310998-ddr4-ram-4gb-2666mhz-pc4-21300-sodimm-laptop-memory](https://www.desertcart.tn/products/178310998-ddr4-ram-4gb-2666mhz-pc4-21300-sodimm-laptop-memory) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-11-14*