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Green circuit board with black memory chips and gold edge connector

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 ECC Unbuffered SODIMM CL19 1.2V 260-PIN memory upgrade

SKU CH-4PDZ-FWAYK

16 GB DDR4 2666 ECC SODIMM for Synology NAS, CL19 1.2 V 260-pin single module

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • ECC protection guards data integrity with DDR4 2666 CL19 operation
  • 16 GB capacity extends NAS workload headroom for Synology DS1621xs+
  • Unbuffered SODIMM installs directly into 260-pin laptop-style slots
  • 2 V DDR4 voltage reduces power draw under sustained load
  • Major-brand Samsung Micron Hynix chips deliver validated reliability

Synology NAS DDR4 ECC SODIMM

This 16 GB DDR4 2666 MHz ECC unbuffered SODIMM is built for Synology DiskStation DS1621xs+ systems that require error-correcting memory. It targets administrators and IT professionals who need validated reliability for continuous file serving and virtualization workloads.

Simple slot insertion with manual reference

Installation consists of inserting the 260-pin module into the NAS memory slot, a process that typically takes minutes. The main risk is mixing ECC unbuffered sticks with non-ECC or registered modules, which prevents boot or disables error correction. Always consult the Synology owner's manual for the exact slot population order.

16 GB 2Rx8 CL19 at 1.2 V

The single decisive specification is the 16 GB 2Rx8 organisation running at CL19 latency and 1.2 V. Systems that demand a different rank configuration, voltage or latency will not operate correctly with this module.

Points forts

  • ECC protection guards data integrity with DDR4 2666 CL19 operation
  • 16 GB capacity extends NAS workload headroom for Synology DS1621xs+
  • Unbuffered SODIMM installs directly into 260-pin laptop-style slots
  • 2 V DDR4 voltage reduces power draw under sustained load
  • Major-brand Samsung Micron Hynix chips deliver validated reliability

Caractéristiques

BrandNEMIX RAM
SeriesSynology Compatible Series NAS Memory
ModelSynology DDR4 2666MHZ ECC Unbuffered SODIMM
Part NumberMSE21300-628K1
Capacity16GB
SpeedDDR4 2666 (PC4 21300)
ECCYes
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemSynology
CAS LatencyCL19
Heat SpreaderNo
Type260-PIN DDR4 ECC SODIMM
Rank2Rx8
FeaturesDDR4 ECC Unbuffered SODIMM Motherboard Compatible
Package Content16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 260-PIN ECC Unbuffered SODIMM

Questions sur cet article

How can I confirm the DDR4 2666 ECC SODIMM is running at the correct speed and latency after installation?

Enter the Synology DiskStation Manager, open the Hardware & Power section, and verify the memory information shows 2666 MHz and CL19 for the installed module.

What does the package contain and what additional parts are required for installation?

The box includes one 16 GB 260-pin DDR4 ECC unbuffered SODIMM; no extra components are needed — simply insert the module into an available slot on the compatible Synology NAS.

Which capacity and rank configuration should I choose for the Synology DS1621xs+?

This 16 GB 2Rx8 module matches the validated specification for the DS1621xs+; select this version when a single 16 GB ECC unbuffered SODIMM is required.

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