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Green rectangular circuit board with gold contacts and black memory chips

OWC

OWC 32GB DDR4 2666 ECC Registered RDIMM CL19 1.2V server RAM

SKU CH-WM1K-70T0R

A single 32GB DDR4 2666 ECC Registered RDIMM with CL19 latency and 1.2V operation for compatible Synology servers

  • Capacity32GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 32GB

Rank 2Rx4

  • ECC registered design protects data integrity in servers and workstations
  • 32 GB capacity in a single 288-pin DDR4 module doubles typical DIMM density
  • DDR4 2666 speed with CL19 latency delivers high throughput for demanding workloads
  • 2 V operation reduces power draw and heat in dense configurations
  • Backward compatible with 2133 MHz and 2400 MHz systems for flexible deployment

Server-grade ECC registered DIMM

This OWC module delivers 32GB of DDR4 2666 PC4-21300 memory with CL19 latency and 1.2V operation. It uses a 288-pin RDIMM form factor with 2Rx4 organisation and full ECC registration. The design targets workstations, servers and NAS systems that require registered error-correcting memory.

JEDEC and RoHS compliant build

The stick follows JEDEC-standard specifications and meets RoHS requirements, making it a warranty-safe upgrade for supported platforms. No heat spreader is fitted, so the module relies on system airflow for cooling. Backward compatibility with 2133MHz and 2400MHz bus speeds allows deployment in mixed-speed environments.

Single-module 32GB upgrade kit

The package contains one 32GB registered DIMM intended as a direct replacement for Synology D4RD-2666-32G and D4ER01-32G parts in units such as the RACKSTATION RS18017xs+. It cannot be mixed with unbuffered or load-reduced ECC memory, so buyers needing those memory types must look elsewhere.

Puntos fuertes

  • ECC registered design protects data integrity in servers and workstations
  • 32 GB capacity in a single 288-pin DDR4 module doubles typical DIMM density
  • DDR4 2666 speed with CL19 latency delivers high throughput for demanding workloads
  • 2 V operation reduces power draw and heat in dense configurations
  • Backward compatible with 2133 MHz and 2400 MHz systems for flexible deployment

Especificaciones

BrandOWC
Part Number2R6D42R432GB
Capacity32GB
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

What speed does the DDR4 2666 interface run at in a system that only supports 2133 MHz?

The module will downclock to 2133 MHz because it is backward compatible with that speed, so the interface caps at the lower frequency.

Will this 288-pin registered DIMM fit in a standard desktop motherboard?

No, the 288-pin registered form factor is keyed for server and workstation boards only and will not seat in consumer desktop slots.

What is the correct way to install this single 32 GB module, and what mistake should I avoid?

Align the notch with the slot key, press firmly until both side clips click, and do not mix this registered ECC module with unbuffered or load-reduced memory.

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