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Synology D4ECSO-2666-16G 16GB ECC SO-DIMM RAM module top view showing 260-pin connector
Synology D4ECSO-2666-16G 16GB ECC SO-DIMM RAM module top view showing 260-pin connector
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Synology D4ECSO-2666-16G 16GB/2666MHz ECC SO-DIMM 260-pin Ram Module

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$1,436.99 exc. VAT Note: VAT will be charged for UK & EU Countries at checkout. For Zero VAT (for EU buyers), please provide a VAT number at checkout.

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Product Code: RMHO-8996

MPN #: D4ECSO-2666-16G

Product Condition: New

Running out of memory on your Synology NAS can slow backups, stall virtual machines and cause data errors - a frustrating bottleneck for any small business or home office. The Synology D4ECSO-2666-16G 16GB/2666MHz ECC SO-DIMM 260-pin Ram Module is a high-quality DDR4 memory upgrade that restores speed and reliability, letting you keep your files safe and your workflows smooth.

Benefits of Synology RAM module

You gain instant performance lift, so daily tasks finish faster and you experience fewer interruptions. The ECC technology continuously checks and corrects errors, giving you peace of mind that critical data stays intact. Its unbuffered design works seamlessly with existing Synology systems, avoiding complex configuration. The 16GB capacity provides enough headroom for multiple applications, extending the life of your device without costly replacements.

Key Features of a 16GB RAM module
  • Form Factor: SO-DIMM 260-pin. Fits the compact slots in Synology servers for easy installation.
  • Data Integrity Check: ECC. Detects and fixes memory errors automatically, protecting your data.
  • Technology: DDR4 SDRAM. Delivers higher bandwidth and lower power consumption than older generations.
  • Speed: 2666 MT/s (PC4-21300). Ensures rapid data transfer for demanding workloads.
  • Type: DRAM memory module. Provides reliable, high-speed volatile storage for active processes.
  • Features: Unbuffered. Simplifies compatibility with Synology’s hardware architecture.
  • Capacity: 16 GB. Offers ample memory for multitasking, virtualization and heavy file services.
  • Upgrade Type: System specific. Tailored to work perfectly with Synology devices, eliminating guesswork.
  • Memory Specification Compliance: PC4-21300. Meets industry standards for performance and stability.
  • Packaged Quantity: 1. Ready to install straight out of the box.

Usages of a 16GB RAM module

Upgrade your NAS for smoother file transfers and quicker backup windows.

Boost virtual machine performance when running multiple guest OSes.

Enhance surveillance storage handling for high-resolution video streams.

Support intensive database applications without lag.

Improve overall system responsiveness during heavy multi-user access.

Why Choose Synology RAM module

Many buyers worry about compatibility, fearing that a generic stick might not work with their Synology NAS or could void the warranty. Others are unsure whether the extra cost of ECC memory is justified for everyday use. These concerns often lead to hesitation or the purchase of the wrong part.

The Synology D4ECSO-2666-16G 16GB/2666MHz ECC SO-DIMM 260-pin Ram Module removes that doubt. It is an OEM-approved, system-specific upgrade that matches the exact specifications required by Synology devices. With ECC error-checking, the module safeguards your data while delivering the 2666 MHz speed you need for demanding tasks, making it a reliable, future-proof investment for any Synology user.


Specifications
Miscellaneous
Miscellaneous / OEM Manufacturer Equivalent Part NumberSynology D4ECSO-2666-16G
Header
Header / Product LineSynology
Header / Packaged Quantity1
Memory
Memory / Form FactorSO-DIMM 260-pin
Memory / Data Integrity CheckECC
Memory / TechnologyDDR4 SDRAM
Memory / Speed2666 MT/s (PC4-21300)
Memory / TypeDRAM memory module
Memory / FeaturesUnbuffered
General
General / Capacity16 GB
General / Upgrade TypeSystem specific
General / OEM Manufacturer Equivalent Part NumberSynology D4ECSO-2666-16G
RAM
RAM / Form FactorSO-DIMM 260-pin
RAM / Registered or BufferedUnbuffered
RAM / Product TypeMemory module
RAM / Upgrade TypeSystem specific
RAM / TypeDRAM
RAM / Memory Specification CompliancePC4-21300
RAM / Data Integrity CheckECC
RAM / TechnologyDDR4 SDRAM
RAM / Storage Capacity16GB
Summary Details
Component forPC/Server
Internal memory16 GB
Memory layout (modules x size)1 x 16 GB
Internal memory typeDDR4
Memory clock speed2666 MHz
Memory form factor260-pin SO-DIMM

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