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Synology D4NESO-2666-4G 4GB DDR4 Memory Module
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Synology D4NESO-2666-4G 4GB DDR4 Memory Module

in Synology RAM
Sku: D4NESO-2666-4G

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Description

Synology D4NESO-2666-4G 4GB DDR4 Memory Module

Enhance your Synology NAS with D4NESO‑2666‑4G non-ECC DDR4‑2666 SO‑DIMM. Official 5‑year warranty, optimized for 20–24‑Series NAS models like DS920+, RS820+.

Product Overview

The Synology D4NESO‑2666‑4G is a genuine 4 GB DDR4‑2666 MHz non‑ECC unbuffered SO‑DIMM specifically designed for Synology NAS units (20–24 Series). Backed by a 5‑year warranty, this module delivers Synology-validated performance and compatibility for smooth upgrades.

Key Features

  • 4 GB DDR4‑2666 MHz (PC4‑21300) non‑ECC memory.

  • Unbuffered SO‑DIMM, 260-pin design, 1.2 V operation.

  • Synology-certified compatibility with models like DS920+, DS720+, DS420+, DS220+, RS820+/RP+, DS2419+, DS1819+, DS1618+.

  • 5‑year manufacturer warranty ensures long-term reliability.

  • Optimized to prevent boot errors and stability issues with Synology DSM firmware.

Technical Specifications

Specification Detail
Capacity 4 GB
Speed DDR4‑2666 MHz (PC4‑21300)
ECC No (Non‑ECC)
Form Factor 260‑pin SO‑DIMM
Voltage 1.2 V
Warranty 5 years
Compatible NAS DS920+, DS720+, DS420+, DS220+, RS820+/RP+, DS2419+, DS1819+, DS1618+

Why Choose D4NESO‑2666‑4G?

  1. Synology-approved reliability—eliminates compatibility issues that can arise with third-party RAM.

  2. Seamless integration—Synology DSM recognizes the module without manual configuration.

  3. Improved multitasking—boosts performance for apps, indexing, and concurrent user access.

  4. Secure investment—backed by a 5‑year warranty for peace of mind.

FAQs

Q1: Which NAS is this compatible with?
Compatible with Synology 20–24 Series—DS920+, DS720+, DS220+, RS820+/RP+, DS2419+, DS1819+, DS1618+—as per Synology’s memory list ([turn0search1], [turn0search2]).

Q2: Can I use non‑Synology RAM?
Some modules may work, but Synology warns unsupported RAM can cause instability or prevent booting. Official RAM ensures full support ([turn0search1]).

Q3: Why choose non‑ECC?
Non‑ECC is appropriate for home and small-business NAS use; ECC is needed only in enterprise-level or mission-critical setups.

Q4: Will this module speed up my NAS?
Yes—additional RAM enhances responsiveness for multitasking, application use, and file indexing.

Q5: Can I mix with other modules?
Not recommended. Mix only with identical modules to maintain system stability.

Q6: How do I install it?
Power off your NAS, insert the SO‑DIMM into an empty slot, then restart—DSM will automatically detect the upgrade.

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