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Four green DDR4 RDIMM modules in a clear tray

NEMIX RAM

NEMIX RAM MR21300-614K4 64GB (4x16GB) DDR4 2666 ECC RDIMM CL19 1.2V 288-Pin memory upgrade

SKU CH-9Q0Z-8C64X

64GB quad-kit of DDR4 2666 ECC registered RDIMMs built for Synology FlashStation FS3600 NAS

  • Capacity64GB (4 x 16GB)
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • ECC protection guards data integrity in critical workloads
  • Registered design stabilises signal quality on server motherboards
  • 64 GB kit expands NAS capacity for heavy multitasking
  • 2 V operation reduces power draw per module
  • Validated compatibility with Synology FlashStation FS3600 NAS

Synology NAS Memory Upgrade

This 64GB kit provides four 16GB DDR4 2666 registered ECC modules validated for the Synology FlashStation FS3600. It targets administrators who need to expand memory capacity in that specific NAS platform.

Tool-Free Module Installation

The 288-pin RDIMM form factor fits standard server DIMM slots and requires no special tools. The main risk is mixing registered ECC modules with unbuffered non-ECC memory, which will prevent the system from posting.

Sustained Load Stability

Registered buffering and on-die ECC maintain data integrity during continuous file-serving and virtualization workloads. The 1.2V operating voltage keeps thermal output consistent over long duty cycles without throttling.

Highlights

  • ECC protection guards data integrity in critical workloads
  • Registered design stabilises signal quality on server motherboards
  • 64 GB kit expands NAS capacity for heavy multitasking
  • 2 V operation reduces power draw per module
  • Validated compatibility with Synology FlashStation FS3600 NAS

Specifications

BrandNEMIX RAM
SeriesSynology Compatible Series NAS Memory
ModelSynology DDR4 2666MHZ ECC RDIMM Registered Server Memory
Part NumberMR21300-614K4
Capacity64GB (4 x 16GB)
SpeedDDR4 2666 (PC4 21300)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemSynology
CAS LatencyCL19
Heat SpreaderNo
Type288-Pin DDR4 RDIMM
Rank1Rx4
FeaturesDDR4 ECC Registered RDIMM Server Motherboard Compatible
Package Content64GB (4X16GB) DDR4 2666MHZ PC4-21300 1Rx4 1.2V CL19 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How do I verify the 2666MHz DDR4 ECC RDIMM is running correctly after installation?

Enter the Synology DSM interface after boot and open the Resource Monitor to confirm all four 16GB modules appear at 2666MHz with ECC active and CL19 timings.

What ships in the MR21300-614K4 kit and do I need anything else?

The box contains four 16GB 288-pin DDR4 2666 ECC registered DIMMs (1Rx4, 1.20V, CL19). No extra cables, brackets or software are required.

Which capacity version should I pick for a Synology FlashStation FS3600?

This 64GB kit (4 x 16GB) matches the FS3600's four-slot layout and is the only capacity offered under part number MR21300-614K4.

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