---
product_id: 745449014
title: "A-Tech 64GB DDR4 2666MHz PC4-21300 ECC RDIMM 4Rx4 (3DS 2S2Rx4) Quad Rank 1.2V ECC Registered DIMM 288-Pin Server & Workstation RAM Memory Upgrade Module (A-Tech Enterprise Series)"
brand: "a-tech"
price: "€ 972.62"
currency: EUR
in_stock: true
category: "A Tech"
url: https://www.desertcart.be/products/745449014-a-tech-64gb-ddr4-2666mhz-pc4-21300-ecc-rdimm-4rx4
store_origin: BE
region: Belgium
---

# 2666MHz blazing speed 64GB massive capacity ECC Registered for error-free stability A-Tech 64GB DDR4 2666MHz PC4-21300 ECC RDIMM 4Rx4 (3DS 2S2Rx4) Quad Rank 1.2V ECC Registered DIMM 288-Pin Server & Workstation RAM Memory Upgrade Module (A-Tech Enterprise Series)

**Brand:** a-tech
**Price:** € 972.62
**Availability:** ✅ In Stock

## Summary

> 🚀 Power your enterprise with unstoppable memory muscle!

## Quick Answers

- **What is this?** A-Tech 64GB DDR4 2666MHz PC4-21300 ECC RDIMM 4Rx4 (3DS 2S2Rx4) Quad Rank 1.2V ECC Registered DIMM 288-Pin Server & Workstation RAM Memory Upgrade Module (A-Tech Enterprise Series) by a-tech
- **How much does it cost?** € 972.62 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/745449014-a-tech-64gb-ddr4-2666mhz-pc4-21300-ecc-rdimm-4rx4)

## 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

- • **Massive 64GB Capacity:** Handle heavy workloads and multitasking like a pro without breaking a sweat.
- • **Blazing 2666MHz DDR4 Speed:** Turbocharge your server & workstation performance with lightning-fast memory bandwidth.
- • **ECC Registered Reliability:** Error-correcting code ensures rock-solid data integrity and uptime for mission-critical systems.
- • **Quad Rank 4Rx4 Architecture:** Optimized for maximum throughput and efficiency in enterprise-grade environments.
- • **Plug & Play Enterprise Compatibility:** Seamlessly upgrade select DDR4 servers & workstations with trusted A-Tech quality and lifetime warranty.

## Overview

The A-Tech 64GB DDR4 2666MHz PC4-21300 ECC Registered RDIMM is a high-capacity, high-speed memory module designed exclusively for select DDR4 servers and workstations. Featuring ECC error correction, quad rank architecture, and a 288-pin form factor, it delivers reliable, stable performance for demanding professional workloads. Backed by a limited lifetime warranty, this module is ideal for IT managers seeking to boost system efficiency and reduce bottlenecks in mission-critical environments.

## Description

Buy A-Tech 64GB DDR4 2666MHz PC4-21300 ECC RDIMM 4Rx4 (3DS 2S2Rx4) Quad Rank 1.2V ECC Registered DIMM 288-Pin Server & Workstation RAM Memory Upgrade Module (A-Tech Enterprise Series): Memory - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- A-Tech RAM Memory compatible for select DDR4 Servers & Workstation systems only; (*WILL NOT WORK with Desktop Computers, Laptop Computers, or PCs of any kind*)
- Single 64GB RAM Module; DDR4 DIMM 288 Pin; Speeds up to 2666MHz/2667MHz PC4-21300 (PC4-2666V)
- ECC Registered RDIMM; 4Rx4 (3DS 2S2Rx4) - Quad Rank x4; JEDEC DDR4 standard 1.2V
- Improves system performance, workload capacity, and reduces bottlenecks by increasing memory (RAM) resources
- Note: This memory is ECC Registered and cannot be mixed with different ECC types such as ECC Unbuffered, 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 | B0C2FTXNXW |
| Additional Features | Ecc, Registered Memory |
| Best Sellers Rank | #96 in Computer Memory |
| Brand | A-Tech |
| Column Address Strobe Latency | CL19 |
| Compatible Devices | Server, Workstation |
| Customer Reviews | 5.0 5.0 out of 5 stars (2) |
| Data Transfer Rate | 21300 megabytes_per_second |
| Form Factor | RDIMM |
| Item Type Name | Computer RAM Memory |
| Manufacturer | A-Tech |
| Memory Form Factor | RDIMM |
| Memory Generation | DDR4 |
| Memory Speed | 2666 MHz |
| Mfr Part Number | AT64G1D4D2666RQ43DSN12V |
| Model Name | A-Tech Enterprise Series |
| Model Number | AT64G1D4D2666RQ43DSN12V |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pins | 288 |
| RAM Memory Technology | DDR4 |
| RAM Size | 64 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:** Server, Workstation
- **Computer Memory Size:** 64 GB
- **Memory Speed:** 2666 MHz
- **RAM Memory Technology:** DDR4

## Images

![A-Tech 64GB DDR4 2666MHz PC4-21300 ECC RDIMM 4Rx4 (3DS 2S2Rx4) Quad Rank 1.2V ECC Registered DIMM 288-Pin Server & Workstation RAM Memory Upgrade Module (A-Tech Enterprise Series) - Image 1](https://m.media-amazon.com/images/I/71w6zujNaDL.jpg)

## Available Options

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

## Questions & Answers

**Q: Will this work in my desktop computer?**
A: No, this memory is designed for servers and select workstations that support DDR4 ECC Registered memory only. If you’re unsure, contact our support team, we’re happy to help you find the exact memory your system needs!

**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: Can I mix ECC Registered (ECC RDIMM) modules with other ECC types?**
A: No, you cannot mix ECC Registered with ECC Unbuffered (ECC UDIMM), Load-Reduced (LRDIMM), or Non-ECC Unbuffered (Non-ECC UDIMM) modules. All installed memory modules must be the same ECC type or your system will fail to boot.

**Q: What ECC type does my system need and which slots should I use?**
A: Refer to your system or motherboard manual for supported ECC types and correct memory channel configuration. Using the wrong type or incorrect slot population can cause boot failures or reduce system stability.

**Q: Why isn't my memory running at the advertised speed?**
A: Memory speed can drop when more DIMMs are installed per channel due to increased electrical load. This is normal and can vary based on your system’s design. Check your server’s memory population and configuration rules for optimal performance.

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-11-13*