Synology 16GB DDR4 SO-DIMM ECC Memory Module

Overview

The Synology D4ES01-16G is a 16 GB DDR4 SO-DIMM ECC memory module designed to enhance the performance of compatible Synology 22-series NAS systems. By increasing the available RAM, it allows these NAS devices to handle more data caching, which accelerates operations such as large file transfers and database queries. The module’s error-correcting code (ECC) technology continuously monitors and corrects single-bit memory errors, ensuring data integrity and system stability during demanding tasks like backups, virtualization, and multi-user access.

Key features

• 16 GB DDR4 ECC memory that improves multitasking and responsiveness in Synology NAS units
• 260-pin SO-DIMM format tailored for easy installation in Synology 22-series models
• ECC technology that detects and corrects memory errors to prevent data corruption and system crashes
• Official compatibility with DS3622xs+, DS2422+, and other 22-series NAS systems for guaranteed reliability
• Unbuffered single-module design that simplifies upgrading without cluttering the memory bay

Key specs

• Memory capacity: 16 GB
• Memory type: DDR4 SO-DIMM
• Pin count: 260 pins
• Error correction: ECC (error-correcting code)
• Compatibility: Synology 22-series NAS models including DS3622xs+ and DS2422+

Installation and setup

Upgrading your Synology NAS with this memory module is straightforward. Simply power down the device, open the memory bay, and insert the module into the 260-pin slot until it clicks securely. After rebooting, the DiskStation Manager automatically detects the new memory, allowing you to verify the total installed RAM through the Control Panel. This hassle-free process ensures your NAS is ready to handle increased workloads without delay.

Ideal uses and environments

This memory upgrade is well suited for small business file servers, multimedia libraries, and home labs that run Docker containers or virtual machines. It supports environments where data integrity and uptime are critical, such as daily backups and multi-user file sharing. By reducing the risk of memory-related errors, it helps maintain smooth operation and continuous availability for your NAS services.