---
product_id: 171089366
title: "16GB RAM Replacement for Synology D4EC-2400-16G | DDR4 2400 MHz PC4-19200 ECC UDIMM Unbuffered DIMM Memory Compatible for NAS & SAN Servers"
brand: "a-tech"
price: "€ 533.65"
currency: EUR
in_stock: true
reviews_count: 13
category: "A Tech"
url: https://www.desertcart.com.cy/products/171089366-16gb-ram-replacement-for-synology-d4ec-2400-16g-ddr4-2400
store_origin: CY
region: Cyprus
---

# 2400 MHz DDR4 speed Plug & play compatibility ECC Unbuffered for data integrity 16GB RAM Replacement for Synology D4EC-2400-16G | DDR4 2400 MHz PC4-19200 ECC UDIMM Unbuffered DIMM Memory Compatible for NAS & SAN Servers

**Brand:** a-tech
**Price:** € 533.65
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your NAS game with A-Tech’s powerhouse RAM upgrade!

## Quick Answers

- **What is this?** 16GB RAM Replacement for Synology D4EC-2400-16G | DDR4 2400 MHz PC4-19200 ECC UDIMM Unbuffered DIMM Memory Compatible for NAS & SAN Servers by a-tech
- **How much does it cost?** € 533.65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/171089366-16gb-ram-replacement-for-synology-d4ec-2400-16g-ddr4-2400)

## 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

- • **Cost-Effective Power:** Get premium Synology-compatible RAM at less than half the price of OEM modules—smart upgrade, smart saving.
- • **Lifetime Peace of Mind:** Backed by A-Tech’s limited lifetime warranty and expert tech support whenever you need it.
- • **Effortless Compatibility:** Designed specifically for Synology RackStation & SAN servers—plug & play with zero hassle.
- • **Data Integrity Guaranteed:** ECC Unbuffered DIMM protects your critical data from bit errors in NAS & SAN environments.
- • **Boost Your NAS Performance:** Upgrade to 16GB DDR4 2400 MHz RAM for seamless multitasking and faster data processing.

## Overview

The A-Tech 16GB DDR4 2400 MHz ECC UDIMM RAM module is a high-performance, reliable memory upgrade tailored for Synology NAS and SAN servers. Featuring error-correcting code (ECC) technology and unbuffered dual-rank design, it ensures data integrity and smooth multitasking. Compatible with a wide range of Synology models, it offers plug-and-play installation backed by a limited lifetime warranty and expert support, delivering a cost-effective alternative to OEM memory with proven user satisfaction.

## Description

Buy A-Tech 16GB RAM Replacement for Synology D4EC-2400-16G | DDR4 2400 MHz PC4-19200 ECC UDIMM Unbuffered DIMM Memory Compatible for NAS & SAN Servers: Memory - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: 5.0 out of 5 stars Worked perfectly in a DS923+ - Size: DDR4 2666MHz 32GB Kit (2 x 16GB)Style: SODIMM ECC Unbuffered Huge difference and fully compatible with DS923+ Going to echo some others, as they stated it well and saves me time (thank you other reviewers) The performance improvement this ram brought to my NAS is also remarkable. With a total of 32GB installed, my DS923+ shows a significant boost in multitasking capabilities and faster data processing. Pull ALL your drives and keep them in order!! They have to be re-installed in the same order after RAM install. Seating them is really tricky to do without pulling out multiple drives and putting the machine on its side. Bought two A-Tech 16GB ECC ram sticks for my DS923+ NAS system. Have to say that I am pleasantly surprised by their performance. These ram sticks exceeded my expectations. I installed them in my DS923+ without any compatibility issues, making it a user-friendly and seamless experience. The absence of warning errors about unofficial ram further confirms their excellent compatibility with the DS923+ system. Also, these are a steal for more than half the price of Synology-branded ram. BUY ECC if you want to protect your data bits on the way into your array and avoid "bit errors" Tips/Recommendation - I also recommend turning off "Memory Compression" (On DSM 7.2, it would be under hardware & power) if you have more than 8GB of ram, as it can further optimize the performance of DSM, allowing your DS923+ to fully utilize the increased memory capacity. I pulled the DS923+ OEM 4GB and used it elsewhere, then installed the 2X16GB ECC units. TL; DR, I highly recommend these 16GB sticks for the DS923+ NAS system, as they deliver a reliable and efficient upgrade with plug-and-play functionality, a lifetime warranty, seamless compatibility, and a huge noticeable performance boost (Disable Memory Compression)
Review: Huge difference and fully compatible with DS923+ - Bought two A-Tech 16GB ram sticks for my DS923+ NAS system. Have to say that I am pleasantly surprised by their performance. These ram sticks exceeded my expectations. I installed them in my DS923+ without any compatibility issues, making it a user-friendly and seamless experience. The absence of warning errors about unofficial ram further confirms their excellent compatibility with the DS923+ system. Also, these are a steal for more than half the price of Synology-branded ram. The performance improvement this ram brought to my NAS is remarkable. With a total of 32GB installed, my DS923+ shows a significant boost in multitasking capabilities and faster data processing. While I can't personally vouch for their longevity (will update the review if they fail), numerous user reviews report using these ram sticks for over three years without problems, highlighting their durability and reliability for long-term use. These rams come with a lifetime warranty, offering peace of mind in case of any issues. Hope they are in business long enough in case they do fail. Tips/Recommendation - I recommend turning off "Memory Compression" (On DSM 7.2, it would be under hardware & power) if you have more than 8GB of ram, as it can further optimize the performance of DSM, allowing your DS923+ to fully utilize the increased memory capacity. TL; DR, I highly recommend these 16GB sticks for the DS923+ NAS system, as they deliver a reliable and efficient upgrade with plug-and-play functionality, a lifetime warranty, seamless compatibility, and a huge noticeable performance boost (Disable Memory Compression)

## Features

- Memory RAM Replacement for Synology D4EC-2400-16G
- Compatible for Synology RackStation, Unified Controller, and Scalable, NAS & SAN Server Models: SA3200D, UC3200, RS1619xs+, RS3618xs, RS2818RP+, RS2418RP+, RS2418+, RS4017xs+, RS3617xs+, RS3617RPxs
- Backed by A-Tech's Limited 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 2400MHz, PC4-19200 / PC4-2400T
- ECC Unbuffered UDIMM | 2Rx8 - Dual Rank | JEDEC DDR4 standard 1.2V

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07RGM9T4L |
| Best Sellers Rank | #289 in Computer Memory |
| Brand | A-Tech |
| Computer Memory Type | DDR4 SDRAM |
| Customer Reviews | 4.6 4.6 out of 5 stars (348) |
| Date First Available | May 6, 2019 |
| Item Dimensions LxWxH | 5.25 x 1.23 x 0.15 inches |
| Item Weight | 0.01 ounces |
| Item model number | D4EC-2400-16G-ATCRS |
| Manufacturer | A-Tech |
| Memory Speed | 2400 MHz |
| Product Dimensions | 5.25 x 1.23 x 0.15 inches |
| RAM | 16 GB DDR4 |
| Voltage | 1.2 Volts |

## Product Details

- **Brand:** A-Tech
- **Computer Memory Size:** 16 GB
- **Memory Speed:** 2400 MHz
- **RAM Memory Technology:** DDR4

## Images

![16GB RAM Replacement for Synology D4EC-2400-16G | DDR4 2400 MHz PC4-19200 ECC UDIMM Unbuffered DIMM Memory Compatible for NAS & SAN Servers - Image 1](https://m.media-amazon.com/images/I/71G-mQl59JL.jpg)

## Available Options

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

## Questions & Answers

**Q: Will this work in my desktop computer?**
A: No, most desktop PCs do not support ECC memory and instead require Non-ECC memory. This memory is designed for workstations and servers compatible with DDR4 ECC Unbuffered memory. If you’re unsure, contact our support team, we’re happy to help!

**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 Unbuffered (ECC UDIMM) modules with other ECC types?**
A: No, you cannot mix ECC Unbuffered with ECC Registered (RDIMM), 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Worked perfectly in a DS923+
*by S***3 on November 13, 2023*

Size: DDR4 2666MHz 32GB Kit (2 x 16GB)Style: SODIMM ECC Unbuffered Huge difference and fully compatible with DS923+ Going to echo some others, as they stated it well and saves me time (thank you other reviewers) The performance improvement this ram brought to my NAS is also remarkable. With a total of 32GB installed, my DS923+ shows a significant boost in multitasking capabilities and faster data processing. Pull ALL your drives and keep them in order!! They have to be re-installed in the same order after RAM install. Seating them is really tricky to do without pulling out multiple drives and putting the machine on its side. Bought two A-Tech 16GB ECC ram sticks for my DS923+ NAS system. Have to say that I am pleasantly surprised by their performance. These ram sticks exceeded my expectations. I installed them in my DS923+ without any compatibility issues, making it a user-friendly and seamless experience. The absence of warning errors about unofficial ram further confirms their excellent compatibility with the DS923+ system. Also, these are a steal for more than half the price of Synology-branded ram. BUY ECC if you want to protect your data bits on the way into your array and avoid "bit errors" Tips/Recommendation - I also recommend turning off "Memory Compression" (On DSM 7.2, it would be under hardware & power) if you have more than 8GB of ram, as it can further optimize the performance of DSM, allowing your DS923+ to fully utilize the increased memory capacity. I pulled the DS923+ OEM 4GB and used it elsewhere, then installed the 2X16GB ECC units. TL; DR, I highly recommend these 16GB sticks for the DS923+ NAS system, as they deliver a reliable and efficient upgrade with plug-and-play functionality, a lifetime warranty, seamless compatibility, and a huge noticeable performance boost (Disable Memory Compression)

### ⭐⭐⭐⭐⭐ Huge difference and fully compatible with DS923+
*by C***S on July 11, 2023*

Bought two A-Tech 16GB ram sticks for my DS923+ NAS system. Have to say that I am pleasantly surprised by their performance. These ram sticks exceeded my expectations. I installed them in my DS923+ without any compatibility issues, making it a user-friendly and seamless experience. The absence of warning errors about unofficial ram further confirms their excellent compatibility with the DS923+ system. Also, these are a steal for more than half the price of Synology-branded ram. The performance improvement this ram brought to my NAS is remarkable. With a total of 32GB installed, my DS923+ shows a significant boost in multitasking capabilities and faster data processing. While I can't personally vouch for their longevity (will update the review if they fail), numerous user reviews report using these ram sticks for over three years without problems, highlighting their durability and reliability for long-term use. These rams come with a lifetime warranty, offering peace of mind in case of any issues. Hope they are in business long enough in case they do fail. Tips/Recommendation - I recommend turning off "Memory Compression" (On DSM 7.2, it would be under hardware & power) if you have more than 8GB of ram, as it can further optimize the performance of DSM, allowing your DS923+ to fully utilize the increased memory capacity. TL; DR, I highly recommend these 16GB sticks for the DS923+ NAS system, as they deliver a reliable and efficient upgrade with plug-and-play functionality, a lifetime warranty, seamless compatibility, and a huge noticeable performance boost (Disable Memory Compression)

### ⭐⭐⭐⭐⭐ Worked perfectly in a DS1522+
*by T***Y on August 14, 2023*

These sticks worked perfectly once I finally got them seated properly. I thought I had a dead stick at first, but I realized that even though they appeared to be seated properly, they were not. Make sure the little tab in the middle is in contact with the notch in the stick. If they are not touching, they are not seated properly. If you think everything is good, but the power light continuously flashes blue (for more than 20 minutes per the 1522 manual), they are not seated. Seating them is really tricky to do without pulling out multiple drives and putting the machine on its side, but that is a Synology issue, not an A-Tech issue. I am really happy with the performance, and especially the price. Like others said, they just work. The machine instantly recognized them with no configuration, errors, or warnings.

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-20*