Synology D4ES03-16G 16GB DDR4 ECC unbuffered SODIMM memory module for compatible NAS systems

Synology D4ES03-16G 16GB DDR4 ECC SODIMM

Name: Synology D4ES03-16G 16GB DDR4 ECC SODIMM
Brand: Synology
SKU: D4ES03-16G
Price: 1185.57 USD
Availability: InStock

Synology|

MPN: D4ES03-16G

UPC: 846504006465

In Stock

$1,185.57

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Key Features

16GB DDR4 memory module
ECC unbuffered SODIMM form factor
Synology-qualified NAS memory
Designed for supported Synology systems
Single-module capacity upgrade
Validated for 24/7 storage workloads

Keep storage services responsive as user counts, virtual machines, and background tasks grow. The Synology D4ES03-16G adds 16GB of DDR4 ECC unbuffered SODIMM memory to supported NAS platforms, giving administrators more room for caching, indexing, replication, and concurrent access without forcing the system into constant memory pressure. ECC support helps detect and correct common memory errors before they affect workload stability, which matters in always-on environments where uptime is part of the service promise. The unbuffered SODIMM design is intended for compatible Synology systems that require validated memory for predictable operation and supportability. For teams sizing memory as part of a longer refresh cycle, this module offers a practical way to extend the useful life of a NAS already doing real work. It is a targeted upgrade for environments that need more capacity, not a generic desktop DIMM substitute. Use it when the cost of instability, slower response times, or limited cache headroom is higher than the price of adding qualified memory.

Ideal For

Upgrade a Synology NAS used for file services and shared storage
Add memory for heavier indexing, backup, and replication tasks
Support virtualized or containerized workloads on compatible NAS hardware
Extend the service life of an existing Synology deployment

Why This Product

116 GB capacity for larger cache and multitasking headroom
2ECC support for improved memory error handling
3Unbuffered SODIMM design for compatible Synology NAS systems
4Qualified memory choice versus generic desktop RAM

Design

Form Factor

SODIMM

Memory

Buffered	Unbuffered
Ecc Support	ECC
Memory Type	DDR4
Module Type	SODIMM
Memory Capacity	16 GB

General

Mpn	D4ES03-16G
Product Name	16GB DDR4 RAM Module - ECC Unbuffered SODIMM

Interface

Host Interface

Memory module

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Frequently Asked Questions

What systems is the D4ES03-16G designed for?▾

It is intended for supported Synology NAS systems that require DDR4 ECC unbuffered SODIMM memory. Always confirm compatibility with the specific model before purchase.

Why choose ECC memory for a NAS?▾

ECC helps detect and correct common memory errors, which is valuable in always-on storage environments where stability matters.

Can I mix this module with non-Synology memory?▾

Mixing qualified and unqualified memory is not recommended. For predictable operation and supportability, use memory approved for the target Synology system.

Does this module improve performance?▾

It can improve responsiveness in memory-constrained workloads by increasing available RAM for caching, multitasking, and background services.