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Green circuit board with black memory chips gold edge connector no heat spreader

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 ECC UDIMM CL19 1.2V 2Rx8 Synology RS3621RPxs memory upgrade

SKU CH-D32P-123MY

16GB DDR4 2666 ECC UDIMM module with CL19 latency and 1.2V operation, validated for Synology RS3621RPxs NAS systems

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • ECC protection prevents data corruption in your Synology RS3621RPxs
  • 16 GB capacity expands NAS memory for heavier workloads
  • DDR4 2666 speed matches the system’s native bus
  • 2 V operation keeps power draw low
  • 288-pin UDIMM fits the RS3621RPxs memory slots directly

Synology RS3621RPxs 16GB ECC UDIMM

This NEMIX RAM module delivers 16GB of DDR4 2666 ECC unbuffered memory built for the Synology RS3621RPxs RackStation. It operates at 1.2V with CL19 latency and uses a 2Rx8 rank layout on 288 pins. The stick is validated for that specific NAS platform.

IT teams upgrading a Synology RS3621RPxs

The module fits only systems that accept DDR4 2666 ECC UDIMM memory and have a free 288-pin slot. Builders needing non-ECC memory, registered DIMMs, higher speeds or larger single-stick capacities should look elsewhere.

Adds 16GB to a compatible NAS slot

Installation uses a standard 288-pin DDR4 socket and requires no extra power or cooling hardware. The ECC function works automatically when the platform supports it, freeing the system to handle data integrity without user intervention.

商品特色

  • ECC protection prevents data corruption in your Synology RS3621RPxs
  • 16 GB capacity expands NAS memory for heavier workloads
  • DDR4 2666 speed matches the system’s native bus
  • 2 V operation keeps power draw low
  • 288-pin UDIMM fits the RS3621RPxs memory slots directly

商品規格

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

商品問答

Does my Synology RS3621RPxs need an open 288-pin DDR4 slot to install this 16 GB ECC UDIMM?

Yes, the module is a 288-pin DDR4 ECC UDIMM and requires one free DDR4 UDIMM slot in the RS3621RPxs.

Can I mix this 2666 MHz CL19 ECC stick with existing DDR4 ECC modules running at a lower speed in the same NAS?

The NAS will clock all installed DDR4 ECC UDIMMs down to the lowest common speed and loosest timings, so the 2666 MHz CL19 module will run at the slower kit's rate.

After installation, how can I confirm the 16 GB 2Rx8 module is recognised and ECC is active on my RS3621RPxs?

Open DSM Control Panel → Info Center → Memory; it should show the new 16 GB capacity and list ECC as enabled for the installed DIMM.

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