# Memory module SYNOLOGY DDR4 ECC 16 GB 260-pin SO-DIMM 3200 MHz 1 x 16 GB for NAS/storage server

**URL:** https://aio.lv/en/product--synology-d4es03-16g--11427470
**Data updated:** 2026-01-21 11:10 (EET)
**Category:** Memory (RAM)
**Manufacturer:** SYNOLOGY
**Manufacturer code:** D4ES03-16G
**EAN:** 4711174726462
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 192.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 985.53 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--synology-d4es03-16g--11427470

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

16 GB DDR4 ECC memory module from SYNOLOGY in a single 1 x 16 GB 260-pin SO-DIMM format. Unbuffered (unregistered) module runs at 3200 MHz and provides error-correcting code (ECC) for improved data integrity in NAS and storage servers. Designed for internal use in compatible Synology and other systems requiring SO-DIMM DDR4 ECC memory; no backlight.

## Long description

The Synology D4ES03-16G is a 16 GB DDR4 ECC memory module in a 260-pin SO-DIMM form factor, intended for use in Synology NAS and storage servers. It provides error-correcting code (ECC) functionality to help maintain data integrity and improve stability for storage and server workloads.
Advantages
Designed specifically for Synology systems to ensure compatibility and predictable behavior, this 16 GB DDR4 ECC module supports error detection and correction to reduce the risk of data corruption. The SO-DIMM 260-pin form factor fits supported Synology models and contributes to stable operation under heavy I/O and multitasking conditions.
Suitable for
 Synology NAS units and storage servers that accept 260-pin SO-DIMM DDR4 ECC modules
 Environments requiring improved data integrity for file storage and virtualization
 Users upgrading memory to support heavier workloads and concurrent access
Key specifications
 Capacity: 16 GB (1 x 16 GB)
 Memory type: DDR4 ECC
 Form factor: 260-pin SO-DIMM
 Manufacturer part number (MPN): D4ES03-16G
 EAN: 4711174726462
How to use
Power down the Synology device and disconnect it from power before performing the upgrade. Refer to the specific Synology model's hardware installation guide to locate the SO-DIMM slot and follow the documented procedure for safe installation. After inserting the module, reconnect power and verify memory recognition in the device's system information or storage manager.
Usage recommendations
Always select authentic Synology memory modules from authorized local distributors for optimum compatibility and reliability. Using non-Synology memory modules for expansion may cause system instability or boot failures; Synology may limit warranty coverage and technical support if non-authorized modules are used.

## Specifications

### Features

| Feature | Value |
|---|---|
| Internal memory | 16 GB |
| Internal memory type | DDR4 |
| Memory form factor | 260-pin SO-DIMM |
| ECC | Yes |
| Component for | NAS/storage server |
| Memory layout (modules x size) | 1 x 16 |
| Compatible products | 25 series:DS1825+, DS1525+, DS925+ |
| Backlight | No |
| Buffered memory type | Unregistered (unbuffered) |

## FAQ

### How much does the SYNOLOGY DDR4 ECC 16 GB SO-DIMM 3200 MHz cost, and is it available for purchase?

The price is 1,192.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 239 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 09.07.2026 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, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can SYNOLOGY DDR4 ECC 16 GB SO-DIMM 3200 MHz 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, memory form factor, 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/11427470/66174268_large.webp