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Four green circuit boards with gold edge connectors and black memory chips

OWC

OWC 64GB (4x16GB) DDR4 2666MHz ECC Registered RDIMM CL19 1.2V 288-pin Server RAM

SKU CH-9VCD-1QGM4

A 64 GB quad-channel DDR4 ECC registered kit running at 2666 MHz CL19 for servers and workstations

  • Capacity64GB (4 x 16GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 64GB (4 x 16GB)

Voir les 7 autres configurations

Rank 2Rx4

  • 64 GB total capacity from four 16 GB modules
  • DDR4 2666 MHz speed with CL19 latency
  • ECC registered design corrects errors for server reliability
  • 2 V operation reduces power draw in dense configs
  • Backward compatible with 2133 MHz and 2400 MHz systems

ECC Registered Server Memory

This 64GB kit contains four 16GB DDR4 modules built to the PC4-21300 standard with CL19 latency. Registered ECC design targets servers, workstations and NAS systems that require error correction and signal buffering.

DDR4 2666MHz Interface Limits

The modules operate at 1.2V and fit 288-pin DDR4 slots, running at 2666MHz with backward compatibility at 2133MHz and 2400MHz. They will not work in standard desktop boards that accept only unbuffered non-ECC memory.

64GB Capacity For Virtualisation

Four ranks of 2Rx4 organisation give 64GB total, suited to multi-VM hosts and memory-heavy databases. Workloads that exceed this footprint will need additional populated slots or higher-density modules.

Points forts

  • 64 GB total capacity from four 16 GB modules
  • DDR4 2666 MHz speed with CL19 latency
  • ECC registered design corrects errors for server reliability
  • 2 V operation reduces power draw in dense configs
  • Backward compatible with 2133 MHz and 2400 MHz systems

Caractéristiques

BrandOWC
Part Number2R6D42R4064S
Capacity64GB (4 x 16GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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Questions sur cet article

Should I choose this 64GB kit or a smaller capacity for my server?

This kit provides 64GB total across four 16GB modules, giving you maximum density per slot for DDR4 2666MHz registered ECC memory.

What does the 2666MHz rating mean once the modules are installed?

The modules run at 2666MHz (PC4-21300) with CL19 latency at 1.2V, and will also operate at 2133MHz or 2400MHz if your system requires a lower speed.

Is the 288-pin RDIMM interface compatible with my workstation motherboard?

These are 288-pin DDR4 ECC registered DIMMs (2Rx4) designed for server, workstation and NAS systems; they will not fit or function in standard desktop boards that require unbuffered memory.

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