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Green printed circuit board with black memory chips in a 288-pin DDR4 UDIMM form factor

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 ECC UDIMM CL19 1.2V 288-Pin Synology SA3200D memory upgrade

SKU CH-5QVJ-QT0YJ

Adds 16 GB of DDR4 2666 ECC unbuffered memory to a Synology SA3200D NAS with CL19 latency at 1.2 V

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 16 GB DDR4 2666 MHz ECC UDIMM for Synology SA3200D NAS
  • Error-correcting code protects data integrity in critical workloads
  • Low 1.2 V operation reduces power draw and heat
  • 288-pin unbuffered design installs in minutes without tools
  • Tested with Samsung, Micron or Hynix chips for proven reliability

Synology SA3200D ECC UDIMM upgrade

This 16GB DDR4 2666 module adds ECC-protected memory to the Synology SA3200D NAS. It runs at 1.2V with CL19 latency and uses a 288-pin unbuffered design. The single-rank 2Rx8 organisation fits the platform's validated memory list.

Replacing non-ECC or lower-capacity DIMMs

Swapping standard unbuffered sticks for this ECC UDIMM enables error correction that guards data integrity in RAID rebuilds and long-running services. The jump is worth it when the NAS handles critical file shares, backups or virtual machines that cannot tolerate silent corruption.

16GB capacity for moderate workloads

One module delivers 16GB of headroom for typical multi-user file serving, Docker containers and snapshot tasks. Heavy virtualization clusters or large-scale deduplication will exhaust this capacity and require additional DIMMs to scale further.

Highlights

  • 16 GB DDR4 2666 MHz ECC UDIMM for Synology SA3200D NAS
  • Error-correcting code protects data integrity in critical workloads
  • Low 1.2 V operation reduces power draw and heat
  • 288-pin unbuffered design installs in minutes without tools
  • Tested with Samsung, Micron or Hynix chips for proven reliability

Specifications

BrandNEMIX RAM
SeriesSynology Compatible Series NAS Memory
ModelSynology DDR4 2666MHZ ECC Unbuffered UDIMM
Part NumberME21300-628K1
Capacity16GB
SpeedDDR4 2666 (PC4 21300)
ECCYes
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemSynology
CAS LatencyCL19
Heat SpreaderNo
Type288-Pin DDR4 ECC UDIMM
Rank2Rx8
FeaturesDDR4 ECC Unbuffered UDIMM Motherboard Compatible
Package Content16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 288-PIN ECC Unbuffered UDIMM

Questions about this item

Will this 288-pin DDR4 ECC UDIMM fit the memory slots in my Synology SA3200D NAS?

Yes, the 288-pin DDR4 ECC UDIMM form factor matches the SA3200D memory slots exactly.

What is the correct way to seat the 16GB 2Rx8 module so the ECC function works?

Align the notch with the slot key, press down firmly until both retention clips click, then verify 2666 MHz operation in DSM.

When should I consider replacing this 1.2V DDR4 2666 CL19 stick?

Replace it if DSM reports correctable ECC errors rising over time or the NAS fails memory diagnostics.

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