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Eight green 288-pin DDR4 RDIMM modules in static bags

OWC

OWC 256GB (8x32GB) DDR4 2666 ECC Registered RDIMM Server RAM

SKU CH-6HCH-P549P

Eight 32 GB DDR4 2666 ECC registered RDIMMs deliver 256 GB for servers, workstations and NAS systems

  • Capacity256GB (8 x 32GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 256GB (8 x 32GB)

Rank 2Rx4

  • 256 GB server memory kit built from eight 32 GB modules
  • DDR4 2666 MHz speed with CL19 latency for responsive workloads
  • ECC registered design detects and corrects data errors automatically
  • JEDEC-standard 1.2 V operation keeps power draw low
  • Compatible with Synology FS6400 and HD6500 plus 2133/2400 MHz systems

Server ECC Registered Kit

This 256GB kit contains eight 32GB DDR4 2666 modules built for servers, workstations and NAS systems that require ECC Registered memory. It is not compatible with standard desktop computers or with unbuffered and load-reduced DIMMs.

JEDEC Compliant Upgrade

The modules meet JEDEC PC4-21300 specifications at CL19 latency and 1.2V, and they are backward compatible with 2133MHz and 2400MHz slots. Each stick is validated to exceed OEM requirements for warranty-safe installation.

288-Pin RDIMM Form Factor

Registered buffering adds a clock cycle to stabilise heavy multi-DIMM loads in multi-channel configurations. The 2Rx4 organisation supports high-density population without a heat spreader, fitting standard 288-pin DDR4 slots in compatible chassis.

Points forts

  • 256 GB server memory kit built from eight 32 GB modules
  • DDR4 2666 MHz speed with CL19 latency for responsive workloads
  • ECC registered design detects and corrects data errors automatically
  • JEDEC-standard 1.2 V operation keeps power draw low
  • Compatible with Synology FS6400 and HD6500 plus 2133/2400 MHz systems

Caractéristiques

BrandOWC
Part Number2R6D42R4256K
Capacity256GB (8 x 32GB)
Type288-Pin DDR4 SDRAM
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

Will the 8x32GB DDR4 2666 ECC Registered RDIMM modules need replacement under normal server operation?

DDR4 ECC Registered RDIMM modules are solid-state with no moving parts, so they do not wear out from normal read/write cycles and rarely need replacement unless a module fails or capacity requirements change.

What is the first limit reached when the 256GB kit runs at 2666 MHz CL19 continuously?

The first limit is the JEDEC-standard 1.2 V operating voltage and CL19 latency at 2666 MHz; sustained loads stay within these rated electrical and timing boundaries.

How much heat and power do the eight 32GB 1.2 V registered DIMMs produce during all-day operation?

Each 32GB DDR4 2666 CL19 registered DIMM runs at 1.2 V with no heat spreader, so total power draw and heat output remain low and within typical server DIMM thermal envelopes.

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