---
product_id: 736923654
title: "A-Tech 16GB DDR4 2666MHz PC4-21300 ECC SODIMM 2Rx8 Dual Rank 1.2V 260-Pin RAM Memory Upgrade Module for Microserver, Workstation, and Networking Platforms"
brand: "a-tech"
price: "S$344"
currency: SGD
in_stock: true
reviews_count: 10
category: "A Tech"
url: https://www.desertcart.sg/products/736923654-a-tech-16gb-ddr4-2666mhz-pc4-21300-ecc-sodimm-2rx8
store_origin: SG
region: Singapore
---

# 2666MHz blazing speed 16GB high-capacity module ECC Unbuffered error correction A-Tech 16GB DDR4 2666MHz PC4-21300 ECC SODIMM 2Rx8 Dual Rank 1.2V 260-Pin RAM Memory Upgrade Module for Microserver, Workstation, and Networking Platforms

**Brand:** a-tech
**Price:** S$344
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your server’s brainpower — because speed and reliability aren’t optional!

## Quick Answers

- **What is this?** A-Tech 16GB DDR4 2666MHz PC4-21300 ECC SODIMM 2Rx8 Dual Rank 1.2V 260-Pin RAM Memory Upgrade Module for Microserver, Workstation, and Networking Platforms by a-tech
- **How much does it cost?** S$344 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/736923654-a-tech-16gb-ddr4-2666mhz-pc4-21300-ecc-sodimm-2rx8)

## 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

- • **16GB Dual Rank Capacity:** Maximize multitasking and workload handling with a robust 16GB memory footprint.
- • **Blazing 2666MHz DDR4 Speed:** Turbocharge your microserver and workstation performance with lightning-fast memory bandwidth.
- • **Reliable ECC Unbuffered Technology:** Minimize costly errors and system crashes with enterprise-grade error correction.
- • **Lifetime Warranty & Trusted Support:** Invest with confidence backed by A-Tech’s limited lifetime warranty and expert customer care.
- • **Optimized for Microservers & Networking:** Specifically engineered for embedded systems, microservers, and networking platforms — no laptop or desktop compromises here.

## Overview

The A-Tech 16GB DDR4 2666MHz PC4-21300 ECC SODIMM is a high-performance, error-correcting memory module designed exclusively for microservers, workstations, and networking platforms. Featuring dual rank 2Rx8 architecture, JEDEC DDR4 standard 1.2V operation, and ECC unbuffered technology, it delivers reliable, fast, and stable memory upgrades that reduce bottlenecks and enhance system workload capacity. Backed by a limited lifetime warranty, this 260-pin SO-DIMM module is a trusted choice for professionals demanding uncompromising performance and stability.

## Description

Buy A-Tech 16GB DDR4 2666MHz PC4-21300 ECC SODIMM 2Rx8 Dual Rank 1.2V 260-Pin RAM Memory Upgrade Module for Microserver, Workstation, and Networking Platforms: Memory - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great for my Synology. - Bought this for a Synology 1522+ and it works perfectly.
Review: It just works! - Installed this on my DS1621+ and I was expecting to get some kind of warning. But, I was wrong! THIS JUST WORKS. I did not get any warning or error. It's as if my Syno was oblivious of the brand.

## Features

- A-Tech RAM Memory compatible for select DDR4 microservers, workstations, networking platforms, and embedded systems; (Will not work with standard laptop computers or desktop PCs)
- Single 16GB RAM Module; DDR4 SO-DIMM 260 Pin; Speeds up to 2666MHz/2667MHz PC4-21300 (PC4-2666V)
- ECC Unbuffered; 2Rx8 - Dual Rank x8; JEDEC DDR4 standard 1.2V
- Improves system performance, workload capacity, and reduces bottlenecks by increasing memory (RAM) resources
- Note: This memory is ECC Unbuffered and cannot be mixed with different ECC types such as ECC Registered, ECC Load Reduced, or Non-ECC Unbuffered; (Memory compatibility can vary among different system models and their installed components; please verify compatibility and follow memory channel guidelines to ensure maximum performance)
- Each A-Tech memory module is built and tested for superior performance and trusted reliability
- All A-Tech products are covered with a Limited Lifetime Warranty and are backed by our top rated support team to help guide you every step of the way

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B9HXK156 |
| Additional Features | ECC Unbuffered, Ecc |
| Best Sellers Rank | #730 in Computer Memory |
| Brand | A-Tech |
| Column Address Strobe Latency | CL19 |
| Compatible Devices | Embedded Systems, Microserver, Mobile Workstation, Networking Platforms |
| Computer Memory Size | 16 GB |
| Customer Reviews | 4.6 out of 5 stars 15 Reviews |
| Data Transfer Rate | 21300 megabytes_per_second |
| Form Factor | SO-DIMM |
| Manufacturer | A-Tech |
| Memory Form Factor | SODIMM |
| Memory Generation | DDR4 |
| Memory Speed | 2666 MHz |
| Mfr Part Number | AT16G1D4S2666ED8N12V |
| Model Number | AT16G1D4S2666ED8N12V |
| Number of Pins | 260 |
| RAM Memory Technology | DDR4 |
| RAM Size | 16 GB |
| Special Feature | ECC Unbuffered, Ecc |
| Voltage | 1.2 volts |
| Warranty Description | Limited Lifetime Warranty covering defects in materials and workmanship |

## Product Details

- **Brand:** A-Tech
- **Compatible Devices:** Embedded Systems, Microserver, Mobile Workstation, Networking Platforms
- **Computer Memory Size:** 16 GB
- **Memory Speed:** 2666 MHz
- **RAM Memory Technology:** DDR4

## Images

![A-Tech 16GB DDR4 2666MHz PC4-21300 ECC SODIMM 2Rx8 Dual Rank 1.2V 260-Pin RAM Memory Upgrade Module for Microserver, Workstation, and Networking Platforms - Image 1](https://m.media-amazon.com/images/I/81vdP1r3e6L.jpg)
![A-Tech 16GB DDR4 2666MHz PC4-21300 ECC SODIMM 2Rx8 Dual Rank 1.2V 260-Pin RAM Memory Upgrade Module for Microserver, Workstation, and Networking Platforms - Image 2](https://m.media-amazon.com/images/I/71JVVh0IE7L.jpg)
![A-Tech 16GB DDR4 2666MHz PC4-21300 ECC SODIMM 2Rx8 Dual Rank 1.2V 260-Pin RAM Memory Upgrade Module for Microserver, Workstation, and Networking Platforms - Image 3](https://m.media-amazon.com/images/I/61c1Vw+dEuL.jpg)
![A-Tech 16GB DDR4 2666MHz PC4-21300 ECC SODIMM 2Rx8 Dual Rank 1.2V 260-Pin RAM Memory Upgrade Module for Microserver, Workstation, and Networking Platforms - Image 4](https://m.media-amazon.com/images/I/81gmro-O3+L.jpg)
![A-Tech 16GB DDR4 2666MHz PC4-21300 ECC SODIMM 2Rx8 Dual Rank 1.2V 260-Pin RAM Memory Upgrade Module for Microserver, Workstation, and Networking Platforms - Image 5](https://m.media-amazon.com/images/I/718XzhQu7mL.jpg)

## Available Options

This product comes in different **Color, Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for my Synology.
*by H***L on December 13, 2025*

Bought this for a Synology 1522+ and it works perfectly.

### ⭐⭐⭐⭐⭐ It just works!
*by D***I on December 23, 2024*

Installed this on my DS1621+ and I was expecting to get some kind of warning. But, I was wrong! THIS JUST WORKS. I did not get any warning or error. It's as if my Syno was oblivious of the brand.

### ⭐⭐⭐⭐⭐ Works in my Synology NAS
*by S***O on March 29, 2025*

Works great in my Synology DS1821+, passes all memory tests and is fully available to all applications.

## Frequently Bought Together

- A-Tech 16GB DDR4 2666MHz PC4-21300 ECC SODIMM 2Rx8 Dual Rank 1.2V 260-Pin RAM Memory Upgrade Module for Microserver, Workstation, and Networking Platforms
- Samsung Electronics 870 EVO 2TB 2.5 Inch SATA III Internal SSD (MZ-77E2T0B/AM)
- Crucial 16GB DDR4 RAM, 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory, SODIMM 260-Pin, Compatible with 13th Gen Intel Core and AMD Ryzen 7000 - CT16G4SFRA32A

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-10-17*