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Synology D4RD-2666-16G 16GB DDR4 2666 MHz RDIMM Memory Module
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Synology D4RD-2666-16G 16GB DDR4 2666 MHz RDIMM Memory Module

in Synology RAM
Sku: D4RD-2666-16G

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Description

Synology D4RD-2666-16G 16GB DDR4 2666 MHz RDIMM Memory Module

 

Upgrade enterprise‑grade Synology NAS like FS6400, FS3600, FS3400, SA3600, SA3400 with the D4RD‑2666‑16G 16 GB DDR4‑2666 ECC RDIMM. Registered ECC reliability, 5‑year warranty, perfect for heavy workloads.

 

Product Overview

The Synology D4RD‑2666‑16G is a 16 GB DDR4‑2666 MHz ECC Registered DIMM (RDIMM) made for high-performance Synology storage servers. Certified for FS6400, FS3600, FS3400, SA3600, and SA3400 series, it offers registered ECC reliability ideal for mission-critical and enterprise setups

Key Features

  • 16 GB DDR4‑2666 MHz (PC4‑21300) registered ECC memory.

  • Registered ECC DIMM (RDIMM), 288-pin, 1.2 V, built for stability in servers.

  • Compatible with Synology FS6400, FS3600, FS3400, SA3600, SA3400 systems.

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

  • Designed to prevent data corruption and system instability in enterprise environments.

Technical Specifications

Specification Detail
Capacity 16 GB
Speed DDR4‑2666 MHz (PC4‑21300)
Form Factor 288‑pin Registered ECC RDIMM
Voltage 1.2 V
ECC Support Yes
Compatible Models FS6400, FS3600, FS3400; SA3600, SA3400
Warranty 5 years

Why Choose D4RD‑2666‑16G?

  1. Enterprise-grade reliability: ECC checks and corrects single-bit errors—crucial for uptime and data integrity.

  2. Registered architecture: RDIMM offers better system stability under high memory loads.

  3. Official compatibility: Fully certified for Synology’s FS and SA enterprise series—no unsupported hardware surprises.

  4. Long-term support: Backed by a five-year warranty and Synology technical support

FAQs

Q1: Which Synology systems support this RAM?
Officially supported on FS6400, FS3600, FS3400 and SA3600, SA3400 units .

Q2: Can I use it in DiskStation models?
No. RDIMM modules are designed specifically for enterprise NAS; DiskStations require SODIMM or UDIMM modules.

Q3: Why choose RDIMM over UDIMM?
RDIMM includes a register buffer for lower electrical load and better signal integrity—ideal for server-grade stability.

Q4: Is ECC necessary?
Yes—ECC prevents silent single-bit errors, protecting against data corruption in critical storage operations.

Q5: Can I mix with other memory modules?
No—Synology mandates identical RDIMM modules (same model) for multi-module configurations Synology.

Q6: How to install it?
Power off the NAS, insert the RDIMM into a free DIMM slot, then reboot. The system will auto-recognize the upgrade.

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