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Two green DDR4 ECC UDIMM sticks, 288-pin, no heat spreader

OWC

OWC 32GB (2x16GB) DDR4 2666MHz ECC UDIMM memory upgrade for Synology RS3618xs

SKU CH-5PSY-TNXAQ

A 32 GB DDR4 2666 MHz ECC UDIMM kit of two 16 GB modules validated for the Synology RS3618xs

  • Capacity32GB (2 x 16GB)
  • Type288-Pin DDR4 ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 32GB (2 x 16GB)

  • 32 GB capacity from two 16 GB modules expands NAS memory for heavier workloads
  • DDR4 2666 MHz CL19 speed matches Synology RS3618xs specifications for stable operation
  • ECC unbuffered design detects and corrects data errors to protect critical files
  • 2 V low-voltage modules reduce power draw and heat in rack environments
  • JEDEC-standard 288-pin UDIMM form factor ensures direct compatibility with the RS3618xs

Synology RS3618xs memory upgrade

This 32 GB kit contains two 16 GB DDR4 2666 MHz ECC unbuffered UDIMM modules built for the Synology RackStation RS3618xs. It targets administrators who need extra capacity for virtual machines, heavy file sharing or surveillance workloads on that specific NAS platform.

Simple DIMM installation

The 288-pin DIMMs slot into the RS3618xs memory bays without tools; the unbuffered design means no extra registration step. The main risk is mixing these ECC modules with any non-ECC sticks already present, which will disable error correction or prevent boot.

Verify slot count and current config

Confirm the RS3618xs has free DIMM slots and that existing memory is also DDR4 ECC unbuffered at 2666 MHz or a compatible lower speed such as 2400 MHz or 2133 MHz. Buyers who need registered or load-reduced DIMMs, or who run a different Synology model, cannot use this kit.

Pontos fortes

  • 32 GB capacity from two 16 GB modules expands NAS memory for heavier workloads
  • DDR4 2666 MHz CL19 speed matches Synology RS3618xs specifications for stable operation
  • ECC unbuffered design detects and corrects data errors to protect critical files
  • 2 V low-voltage modules reduce power draw and heat in rack environments
  • JEDEC-standard 288-pin UDIMM form factor ensures direct compatibility with the RS3618xs

Especificações

BrandOWC
Part Number2E6D42R8032P
Capacity32GB (2 x 16GB)
Type288-Pin DDR4 ECC UDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemSynology RackstationRS3618xs

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Perguntas sobre este artigo

How can I verify the kit is running at DDR4 2666MHz CL19 with ECC active after installing it in my RS3618xs?

Enter the DSM Control Panel, open Info Center and check the Memory section; it will show 32GB total, 2666MHz speed and ECC enabled if the modules are operating correctly.

What does the 2x16GB kit contain and is anything else required for installation in the Synology RS3618xs?

The package includes two 16GB 288-pin DDR4 ECC UDIMM modules; no extra tools or parts are needed — just insert them into the available DIMM slots.

Should I choose this 32GB 2666MHz ECC UDIMM kit or a different capacity for the RS3618xs?

This 32GB kit matches the RS3618xs validated speed of 2666MHz with CL19 timing and ECC support; select it when you need the full 32GB upgrade.

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