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Green 288-pin DDR4 RDIMM module with black chips, no heat spreader

OWC

OWC 16GB DDR4 2666 ECC Registered RDIMM for Synology D4RD-2666-16G FS2017 server RAM

SKU CH-W59X-S467Y

16 GB DDR4 2666 ECC registered RDIMM for Synology FS2017 servers and workstations

  • Capacity16GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 16GB

Rank 2Rx4

  • 16 GB DDR4-2666 ECC Registered RDIMM for Synology FS2017
  • JEDEC and RoHS compliant for warranty-safe server upgrades
  • CL19 latency at 1.2 V for stable 24/7 operation
  • 2Rx4 dual-rank design maximises memory density per slot
  • Backward compatible with 2133 MHz and 2400 MHz systems

16GB DDR4 ECC Registered RDIMM

This 16GB DDR4 2666MHz PC4-21300 CL19 module is built for servers, workstations and NAS systems such as the Synology FlashStation FS2017. It uses registered ECC technology to protect data integrity in multi-tasking environments. The single 2Rx4 rank DIMM operates at 1.2V without a heat spreader. It is not compatible with standard desktop computers or unbuffered memory configurations.

Verify registered ECC support and slot availability

Before ordering, confirm that your motherboard or NAS accepts 288-pin DDR4 registered ECC DIMMs and does not require unbuffered or load-reduced modules. Registered memory cannot be mixed with unbuffered or ECC load-reduced types in the same system. Check that free DIMM slots remain for the 16GB capacity you intend to add. The module is backward compatible with 2133MHz and 2400MHz bus speeds if your platform runs at those frequencies.

JEDEC and RoHS compliance simplify deployment

The module meets JEDEC-standard specifications and RoHS requirements, making it a warranty-safe upgrade for supported OEM platforms. OWC provides a limited lifetime warranty with free technical support and an advanced replacement programme. No additional software or accessories are bundled; the upgrade consists solely of the memory module itself.

Puntos fuertes

  • 16 GB DDR4-2666 ECC Registered RDIMM for Synology FS2017
  • JEDEC and RoHS compliant for warranty-safe server upgrades
  • CL19 latency at 1.2 V for stable 24/7 operation
  • 2Rx4 dual-rank design maximises memory density per slot
  • Backward compatible with 2133 MHz and 2400 MHz systems

Especificaciones

BrandOWC
Part Number2R6D42R416GB
Capacity16GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo

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Preguntas sobre este artículo

Does the box include more than the single 16GB DDR4 2666 CL19 2Rx4 288-pin 1.2V ECC Registered RDIMM module?

No, the package contains one 16GB DDR4 2666 CL19 2Rx4 288-pin 1.2V ECC Registered RDIMM and nothing else.

Should I pick a different capacity or speed for my Synology FS2017, or is the 16GB 2666 MHz module the right match?

The 16GB DDR4 2666 MHz CL19 2Rx4 1.2V ECC Registered RDIMM matches the Synology D4RD-2666-16G and D4ER01-16G part numbers used in the FS2017.

What does the 2666 MHz PC4-21300 rating mean once the module is installed in the FS2017?

It will run at 2666 MHz CL19 with ECC registered operation; the system also supports backward compatibility at 2133 MHz and 2400 MHz if required.

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