# Memory module Synology DDR4 4 GB 1 x 4 GB ECC

**URL:** https://aio.lv/en/product--synology-d4eu01-4g--4142576
**Data updated:** 2026-01-13 21:19 (EET)
**Category:** Memory (RAM)
**Manufacturer:** SYNOLOGY
**Manufacturer code:** D4EU01-4G
**Warranty:** 5 Years
**Availability:** Available for order
**Price:** 84.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 69.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--synology-d4eu01-4g--4142576

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

The Synology D4EU01-4G is a 4 GB DDR4 ECC memory module designed for reliable performance. With a layout of 1 x 4 GB, it ensures efficient data processing and error correction, making it ideal for server environments. Upgrade your system's memory for enhanced multitasking and stability.

## Long description

The Synology DDR4 4 GB ECC memory module is a single 4 GB DIMM designed to provide stable, error-correcting memory for compatible Synology systems. Built to the DDR4 standard, this module supports ECC functionality to detect and correct single-bit memory errors, helping maintain data integrity in always-on network-attached storage and small server environments. The compact 1 x 4 GB configuration is suited for targeted upgrades where additional memory capacity and reliability are required without replacing existing modules.
Advantages
This memory module combines DDR4 performance with ECC error correction to reduce the likelihood of data corruption and system crashes. Its small 4 GB capacity allows cost-effective incremental upgrades, while compatibility with supported Synology systems ensures straightforward installation and operation. The module is optimized for sustained, stable operation in 24/7 NAS and server workloads.
Suitable for
Expanding memory in compatible Synology NAS devices
Improving system stability for file sharing and backup services
Supporting light virtualization and container workloads
Enhancing multitasking performance in small office servers
Key specifications
Memory capacity: 4 GB
Memory type: DDR4
Error correction: ECC (single-bit error detection and correction)
Module configuration: single module (1 x 4 GB)
Form factor: standard DIMM for compatible server/NAS slots
How to use
Power down the target Synology device and disconnect from mains power before installing the memory module. Open the device's memory compartment according to the manufacturer's service instructions, align the module with the slot notch, and press firmly until the retention clips engage. Close the compartment, reconnect power, and verify that the system recognizes the added memory in the device's administration interface. Follow Synology's compatibility list and installation guidelines to ensure correct operation.
Usage recommendations
Install this 4 GB DDR4 ECC module only in systems listed as compatible by the device manufacturer. For systems requiring multiple modules, use matching memory specifications and populate slots according to the manufacturer's guidelines. Regularly update system firmware to maintain compatibility and stability.

## Specifications

### Features

| Feature | Value |
|---|---|
| Internal memory | 4 GB |
| Internal memory type | DDR4 |
| ECC | Yes |
| Memory layout (modules x size) | 1 x 4 |
| Compatible products | 21 series:RS2821RP+, RS2421RP+, RS2421+ |
| Buffered memory type | Unregistered (unbuffered) |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 84733020 |

## FAQ

### How much does the Memory module Synology 4 GB D4EU01-4G cost, and is it available for purchase?

The price is 84.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 03.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Memory module Synology 4 GB D4EU01-4G be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All SYNOLOGY products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized SYNOLOGY service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: internal memory, internal memory type, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/4142576/62514666_large.webp