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Green circuit board with black memory chips and gold edge connector

NEMIX RAM

NEMIX RAM 16GB DDR4 2400 ECC UDIMM Synology Compatible memory upgrade

SKU CH-RSJ0-W0D6Z

16 GB DDR4-2400 ECC UDIMM for Synology NAS, CL17 1.2 V 288-pin single module

  • Capacity16GB
  • SpeedDDR4 2400 (PC4 19200)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 16 GB DDR4 ECC UDIMM adds reliable capacity to Synology NAS
  • 2400 MHz PC4-19200 speed matches supported system specifications
  • CL17 latency at 1.20 V balances performance and efficiency
  • 2Rx8 288-pin unbuffered design ensures mechanical compatibility
  • Built with Samsung, Micron or Hynix chips and stress-tested for stability

Synology NAS Memory Upgrade

This 16GB DDR4 ECC UDIMM is built for Synology RackStation NAS systems that require error-correcting memory. It targets administrators and small-business users who need reliable capacity expansion for file services, virtualization or backup workloads. The module operates at 2400MHz with CL17 latency and 1.2V power draw.

Unbuffered 288-Pin Design

The stick uses a standard 288-pin DDR4 UDIMM form factor without a heat spreader, so it fits directly into compatible Synology memory slots. Major OEM chips from Samsung, Micron or Hynix are used, and each unit is stress-tested under load before shipping. The 2Rx8 organisation supports dual-rank operation on supported platforms.

Verify Slot Count And Maximum Capacity

Before ordering, confirm how many UDIMM slots your RackStation model provides and what total memory it officially supports. This module is a single 16GB rank; systems limited to 8GB per slot or to a lower aggregate ceiling will not recognise the full capacity. Also ensure the platform accepts DDR4 2400 ECC unbuffered modules rather than registered or non-ECC types.

Highlights

  • 16 GB DDR4 ECC UDIMM adds reliable capacity to Synology NAS
  • 2400 MHz PC4-19200 speed matches supported system specifications
  • CL17 latency at 1.20 V balances performance and efficiency
  • 2Rx8 288-pin unbuffered design ensures mechanical compatibility
  • Built with Samsung, Micron or Hynix chips and stress-tested for stability

Specifications

BrandNEMIX RAM
SeriesSynology Compatible Series NAS Memory
ModelSynology DDR4 2666MHZ ECC Unbuffered UDIMM
Part NumberME19200-628K1
Capacity16GB
SpeedDDR4 2400 (PC4 19200)
ECCYes
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemSynology
CAS LatencyCL17
Heat SpreaderNo
Type288-Pin DDR4 ECC UDIMM
Rank2Rx8
FeaturesDDR4 2666MHZ ECC Unbuffered UDIMM Motherboard Compatible
Package Content16GB (1X16GB) DDR4 2400MHZ PC4-19200 2Rx8 1.2V CL17 288-PIN ECC Unbuffered UDIMM

Questions about this item

What DDR4 speed does the PC4-19200 rating cap the module at in practice?

The PC4-19200 rating limits the module to 2400 MT/s even though the series is labelled DDR4 2666MHZ.

Does the 288-pin ECC UDIMM need a heat spreader to fit in a Synology RackStation NAS?

No heat spreader is included; the bare 288-pin UDIMM fits the standard DIMM slots in compatible Synology NAS units.

How is the single 16 GB 2Rx8 module installed, and what step do people often miss?

Power off the NAS, open the chassis, align the notch on the 288-pin edge connector, press firmly until the retention clips click, then power on and verify the new capacity in DSM.

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