--- product_id: 178311224 title: "A-Tech 16GB DDR4 2666 MHz UDIMM PC4-21300 (PC4-2666V) CL19 DIMM Non-ECC Desktop RAM Memory Module" brand: "a-tech" price: "R3747" currency: ZAR in_stock: true category: "A Tech" url: https://www.desertcart.co.za/products/178311224-a-tech-16gb-ddr4-2666-mhz-udimm-pc4-21300-pc4 store_origin: ZA region: South Africa --- # 2666 MHz blazing speed 16GB high-capacity module Plug & play easy install A-Tech 16GB DDR4 2666 MHz UDIMM PC4-21300 (PC4-2666V) CL19 DIMM Non-ECC Desktop RAM Memory Module **Brand:** a-tech **Price:** R3747 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your desktop’s brainpower — because speed waits for no one! ## Quick Answers - **What is this?** A-Tech 16GB DDR4 2666 MHz UDIMM PC4-21300 (PC4-2666V) CL19 DIMM Non-ECC Desktop RAM Memory Module by a-tech - **How much does it cost?** R3747 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/178311224-a-tech-16gb-ddr4-2666-mhz-udimm-pc4-21300-pc4) ## 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 - • **Effortless DIY Upgrade:** User-friendly UDIMM design lets you upgrade your desktop memory without any technical hassle. - • **Reliable & Future-Proof:** Backed by A-Tech’s limited lifetime warranty and trusted JEDEC DDR4 standards for peace of mind. - • **Optimized for Windows 11:** Perfectly balances performance and cost, ideal for handling Windows 11’s higher RAM demands. - • **Blazing Fast 2666 MHz Speed:** Experience rapid data transfer rates that cut down loading times and accelerate workflows. - • **Boost Your Multitasking Power:** 16GB DDR4 RAM ensures smooth, lag-free performance even with 45+ browser tabs open. ## Overview The A-Tech 16GB DDR4 2666 MHz UDIMM RAM module is a high-performance, easy-to-install memory upgrade designed for select desktop PCs. With a fast 2666 MHz speed, 16GB capacity, and non-ECC reliability, it enhances multitasking and system responsiveness. Backed by a lifetime warranty and compatible with Windows 11, it’s the smart choice for professionals seeking a cost-effective performance boost. ## Description Buy A-Tech 16GB DDR4 2666 MHz UDIMM PC4-21300 (PC4-2666V) CL19 DIMM Non-ECC Desktop RAM Memory Module: Memory - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - Compatible with select DDR4 Desktop computers + Easy to install at home, no expertise required - Maximize your system's performance, boost loading speeds and multitask with ease - Backed by A-Tech's Lifetime Warranty + Friendly tech support team available to help before and after your purchase - Single 16GB RAM Module | DDR4 DIMM 288-Pin | Speeds up to 2666MHz (2667MHz), PC4-21300 / PC4-2666V - NON-ECC Unbuffered | 1Rx8 or 2Rx8 - Single or Dual Rank | JEDEC DDR4 standard 1.2V ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07KGMVVDZ | | Additional Features | Lightweight | | Best Sellers Rank | #16 in Computer Memory | | Brand | A-Tech | | Column Address Strobe Latency | 19 | | Compatible Devices | Desktop, Workstation | | Customer Reviews | 4.6 4.6 out of 5 stars (1,009) | | Data Transfer Rate | 21300 Megabytes Per Second | | Form Factor | DIMM | | Manufacturer | A-Tech Components | | Memory Form Factor | UDIMM | | Memory Generation | DDR4 | | Memory Speed | 2666 MHz | | Mfr Part Number | AT16G1D4D2666NA0N12V | | Model Number | AT16G1D4D2666NA0N12V | | Number of Pins | 288 | | RAM Memory Technology | DDR4 | | RAM Size | 16 GB | | Unit Count | 1.0 Count | | Voltage | 1.2 Volts | | Warranty Description | Limited Lifetime Warranty Covering Defects In Materials And Workmanship | ## Product Details - **Brand:** A-Tech - **Compatible Devices:** Desktop, Workstation - **Computer Memory Size:** 16 GB - **Memory Speed:** 2666 MHz - **RAM Memory Technology:** DDR4 ## Images ![A-Tech 16GB DDR4 2666 MHz UDIMM PC4-21300 (PC4-2666V) CL19 DIMM Non-ECC Desktop RAM Memory Module - Image 1](https://m.media-amazon.com/images/I/71wjYS7LSyL.jpg) ![A-Tech 16GB DDR4 2666 MHz UDIMM PC4-21300 (PC4-2666V) CL19 DIMM Non-ECC Desktop RAM Memory Module - Image 2](https://m.media-amazon.com/images/I/71GzFcKZqTL.jpg) ![A-Tech 16GB DDR4 2666 MHz UDIMM PC4-21300 (PC4-2666V) CL19 DIMM Non-ECC Desktop RAM Memory Module - Image 3](https://m.media-amazon.com/images/I/81zYwruA7+L.jpg) ![A-Tech 16GB DDR4 2666 MHz UDIMM PC4-21300 (PC4-2666V) CL19 DIMM Non-ECC Desktop RAM Memory Module - Image 4](https://m.media-amazon.com/images/I/71m6AXi83TL.jpg) ![A-Tech 16GB DDR4 2666 MHz UDIMM PC4-21300 (PC4-2666V) CL19 DIMM Non-ECC Desktop RAM Memory Module - Image 5](https://m.media-amazon.com/images/I/719bXSLemVL.jpg) ## Available Options This product comes in different **Size** 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! ## Frequently Bought Together - A-Tech 16GB DDR4 2666 MHz UDIMM PC4-21300 (PC4-2666V) CL19 DIMM Non-ECC Desktop RAM Memory Module - ARCTIC MX-4 (4 g) - Premium Performance Thermal Paste for All Processors (CPU, GPU - PC), Very high Thermal Conductivity, Long Durability, Safe Application, Non-Conductive - SAMSUNG 990 EVO SSD 1TB, PCIe Gen 4x4, Gen 5x2 M.2 2280 NVMe Internal Solid State Drive, Speeds Up to 5,000MB/s, Upgrade Storage for PC Computer, Laptop, MZ-V9E1T0B/AM, 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.co.za/products/178311224-a-tech-16gb-ddr4-2666-mhz-udimm-pc4-21300-pc4](https://www.desertcart.co.za/products/178311224-a-tech-16gb-ddr4-2666-mhz-udimm-pc4-21300-pc4) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-07-14*