Synology D4NESO-2666-4G memory module 4 GB 1 x 4 GB DDR4 2666 MHz
Description
The Synology D4NESO-2666-4G is a 4 GB DDR4-2666 MHz SO-DIMM memory module designed specifically for Synology NAS systems. It’s part of Synology’s official memory lineup, ensuring optimal compatibility, stability, and performance with supported NAS models
Key Features
- Capacity: 4 GB
- Memory Type: DDR4 (Non-ECC, Unbuffered)
- Speed: 2666 MHz (PC4-21300)
- Form Factor: 260-pin SO-DIMM
- Voltage: 1.2 V
- Buffered: No (Unregistered)
- ECC Support: No
- Warranty: 5 years (manufacturer-backed)
Compatibility
This module is officially validated for use with Synology NAS models from the 20–24 Series, including:
- DS920+, DS720+, DS420+, DS220+
- RS820+/RP+
- DS2419+, DS1819+, DS1618+
- Plug-and-play integration: Synology DSM firmware automatically detects and configures the module without manual setup.
- Form factor: 260-pin SO-DIMM, 1.2V operation, PC4-21300 standard
Performance
- DDR4-2666 MHz Speed: Provides fast data transfer rates, improving overall system responsiveness and multitasking capabilities.
- Non-ECC SO-DIMM: Ideal for home and small business setups where error correction isn’t critical, offering better value and lower power consumption
Reliability
- Synology-certified: Using official Synology memory ensures full compatibility, system stability, and avoids boot errors.
- Warranty: Backed by a 5-year manufacturer warranty for long-term peace of mind.
- Avoid third-party RAM: Synology warns that non-certified modules may cause instability or prevent booting, and may void warranty support
Why Choose This Module?
- Synology-certified: Guaranteed compatibility and seamless integration.
- Plug-and-play: DSM auto-detects the module—no manual setup required.
- Performance boost: Enhances multitasking, indexing, and concurrent user access.
- Ideal for boosting multitasking, file indexing, and concurrent user access.
- Low Voltage (1.2V): Energy-efficient operation helps reduce power consumption and heat generation
- Avoids issues that may arise with third-party RAM modules
- Reliability: Backed by a 5-year warranty for peace of mind.
Ideal Use Cases
- Synology NAS Upgrades: Perfect for expanding memory in compatible Synology NAS models such as DS920+, DS720+, DS420+, DS220+, RS820+/RP+, DS2419+, DS1819+, and DS1618+.
- Enhanced Multitasking: Boosts performance for simultaneous file transfers, media streaming, and multiple user access.
- Improved App Responsiveness: Speeds up indexing, surveillance tasks, and running applications like Docker, Plex, or Synology Drive.
- DSM Optimization: Seamlessly integrates with Synology DiskStation Manager (DSM) firmware, reducing boot errors and ensuring system stability.
- Home & Small Business Use: Ideal for non-enterprise environments where ECC memory isn’t required.










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