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

OWC

OWC 128GB DDR4 2666 CL19 8Rx4 ECC RDIMM memory upgrade

SKU CH-DZS9-V1HMS

128GB DDR4 2666 CL19 ECC Registered RDIMM for Supermicro H11DSi, H11DSi-NT, H11DST-B, H11DSU-iN and H11SSL-C motherboards

  • Capacity128GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS Latency19
  • Voltage1.2V
  • ECCYes
  • 128 GB single-module capacity simplifies server upgrades
  • DDR4 2666 CL19 speed handles demanding workloads
  • ECC registered design protects data integrity in critical systems
  • 2 V operation reduces power draw and heat
  • Validated for Supermicro H11DSi, H11DSi-NT, H11DST-B, H11DSU-iN, H11SSL-C

Server-grade capacity

This 128GB DDR4 2666 CL19 8Rx4 ECC RDIMM is a single registered module built for Supermicro H11DSi, H11DSi-NT, H11DST-B, H11DSU-iN and H11SSL-C motherboards. It operates at 1.2V and meets JEDEC PC4-21300 specifications for server and workstation platforms.

Workstation and server builds only

The module suits administrators expanding memory in compatible Supermicro systems or integrating high-density ECC registered DIMMs into validated server configurations. It will not work in standard desktop computers and cannot be mixed with unbuffered or load-reduced ECC memory types.

Sustained error-corrected throughput

Registered buffering and on-die ECC maintain data integrity during continuous multi-threaded workloads such as virtualisation, database serving or render farms. Backward compatibility with 2133MHz and 2400MHz clocks allows stable operation when the platform negotiates lower speeds under heavy sustained load.

Puntos fuertes

  • 128 GB single-module capacity simplifies server upgrades
  • DDR4 2666 CL19 speed handles demanding workloads
  • ECC registered design protects data integrity in critical systems
  • 2 V operation reduces power draw and heat
  • Validated for Supermicro H11DSi, H11DSi-NT, H11DST-B, H11DSU-iN, H11SSL-C

Especificaciones

BrandOWC
Part Number2R6D48R4128G
Capacity128GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2666 (PC4 21300)
CAS Latency19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank8Rx4
Heat SpreaderNo
Compatible SystemSupermicro Motherboard H11DSi
Supermicro Motherboard H11DSi-NT
Supermicro Motherboard H11DST-B
Supermicro Motherboard H11DSU-iN
Supermicro Motherboard H11SSL-C

Preguntas sobre este artículo

Which motherboards must I already own for this 288-pin DDR4 2666 ECC RDIMM to work?

It is validated for Supermicro H11DSi, H11DSi-NT, H11DST-B, H11DSU-iN and H11SSL-C motherboards.

Can I keep my existing 2133 MHz or 2400 MHz DDR4 ECC registered modules alongside this 2666 MHz stick?

Yes, the module is backward compatible with 2133 MHz and 2400 MHz speeds, but all modules must be ECC registered — mixing with unbuffered or load-reduced memory is not supported.

How do I confirm the 128 GB 8Rx4 module is running at CL19 1.2 V after installation?

Check the BIOS or UEFI memory information screen; it should report 2666 MT/s, CAS latency 19, 1.2 V and 8Rx4 organisation for the installed DIMM.

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