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Four green DDR4 RDIMM modules, 288-pin, no heat spreader

OWC

OWC 128GB (4x32GB) DDR4 2666 ECC Registered RDIMM CL19 1.2V 2Rx4

SKU CH-P2YY-SW757

Four 32 GB DDR4 2666 CL19 ECC registered RDIMMs at 1.2 V for server and NAS upgrades

  • Capacity128GB (4 x 32GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 128GB (4 x 32GB)

Rank 2Rx4

  • ECC Registered design protects data integrity in servers
  • 128GB total capacity across four 32GB modules for heavy workloads
  • DDR4 2666 speed with CL19 latency at 1.2V
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133MHz and 2400MHz systems

ECC Registered DDR4 for Servers and NAS

This kit provides 128GB of DDR4 2666 ECC registered memory in four 32GB modules. It targets administrators upgrading Synology FlashStation FS2017 units or similar workstation and NAS platforms that require registered DIMMs. The modules will not function in standard desktop computers or alongside unbuffered or load-reduced memory.

128GB Capacity with 2666MHz Headroom

The 4x32GB configuration delivers 128GB total capacity for multi-VM workloads and large datasets. Rated at PC4-21300 CL19, the modules run at 2666MHz and fall back to 2133MHz or 2400MHz when the system demands it. Registered signalling and ECC correction protect data integrity, but the kit cannot serve builds that need unbuffered DIMMs or higher frequencies.

JEDEC-Compliant Modules Without Heat Spreaders

Each 288-pin RDIMM operates at 1.2V and meets JEDEC and RoHS standards for warranty-safe deployment. The absence of heat spreaders keeps the profile low for dense server chassis, while the dual-rank 2Rx4 organisation supports the platform's memory controller. No additional software or accessories are included beyond the four memory modules.

Points forts

  • ECC Registered design protects data integrity in servers
  • 128GB total capacity across four 32GB modules for heavy workloads
  • DDR4 2666 speed with CL19 latency at 1.2V
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133MHz and 2400MHz systems

Caractéristiques

BrandOWC
Part Number2R6D42R4128S
Capacity128GB (4 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

Autres versions de ce modèle

5 de plus dans cette gamme

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Questions sur cet article

Will this 2666 MHz DDR4 ECC registered kit run alongside my existing 2133 MHz or 2400 MHz modules?

The kit is backward compatible with 2133 MHz and 2400 MHz DDR4 ECC registered DIMMs, so it will operate at the speed of the slowest installed modules.

How can I verify the 128 GB kit is running at 2666 MHz with ECC active after installation?

Check the system BIOS or operating-system memory report; it should show 128 GB total, 2666 MT/s (PC4-21300), CL19 timings and ECC registered status.

Does the package include only the four 32 GB RDIMMs or are any tools or cables supplied?

The box contains the four 32 GB 288-pin DDR4 ECC registered RDIMM modules; no tools, cables or additional hardware are included.

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