Synology 4GB DDR4 ECC SO-DIMM memory module for NAS systems

Synology 4GB DDR4 ECC SO-DIMM | NAS Memory, Server-Grade

Name: Synology 4GB DDR4 ECC SO-DIMM | NAS Memory, Server-Grade
Brand: Synology
SKU: D4ES01-4G
Price: 251.56 USD
Availability: InStock

Synology|

MPN: D4ES01-4G

UPC: 846504004034

In Stock

$251.56

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Key Features

4 GB DDR4 memory capacity
ECC support for error correction
SO-DIMM compact module format
Designed for Synology-compatible systems
DDR4 architecture for modern NAS platforms
Memory module for storage appliances

When a storage platform is expected to stay online, memory quality matters. The Synology D4ES01-4G adds 4 GB of DDR4 ECC SO-DIMM capacity in a compact module designed for compatible Synology systems. ECC support helps maintain data integrity in environments where reliability is more important than raw capacity alone. This is the kind of upgrade that fits the role of a NAS: steady file access, scheduled backups, media services, and small-business storage workloads that benefit from predictable behavior. The SO-DIMM format keeps the module appropriate for compact chassis designs, while DDR4 architecture supports modern system requirements. For procurement teams, the value is in matching the right memory class to the platform. ECC memory is not a generic desktop substitute; it is a deliberate choice for systems where uptime, consistency, and error detection justify the premium over consumer-grade modules. That makes this module a practical fit for organizations that want to protect storage performance and reduce avoidable support issues.

Ideal For

Expand memory in a Synology NAS used for shared file storage
Support backup and replication tasks on an always-on storage appliance
Improve stability in a small business media or archive server
Match ECC memory requirements for compatible compact systems

Why This Product

1ECC support for better data integrity than non-ECC modules
2SO-DIMM format for compact NAS and small chassis systems
3Purpose-built for compatible Synology deployments
4More reliable fit for always-on storage workloads than consumer RAM

Design

Form Factor

SO-DIMM

Memory

Capacity	4 GB
Memory Type	DDR4 ECC
Module Type	SO-DIMM

Interface

Host Interface

DDR4 SO-DIMM

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Frequently Asked Questions

What is ECC memory used for?▾

ECC memory detects and corrects certain memory errors, which helps improve reliability in systems that run continuously.

Is this module for desktop PCs?▾

No. It is a DDR4 ECC SO-DIMM module intended for compatible compact systems such as supported Synology devices.

Why choose ECC for a NAS?▾

A NAS often handles critical files, backups, and shared services, so ECC helps reduce the risk of memory-related data issues.

Can I mix this with standard non-ECC memory?▾

That depends on the platform, but memory should generally match the system's supported type and configuration requirements.