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Green circuit board with gold edge contacts and black memory chips

OWC

OWC 2L9D44R4128G 128GB DDR4 2933 CL21 4Rx4 ECC LRDIMM memory upgrade

SKU CH-CX82-W6701

A single 128GB DDR4 2933 CL21 4Rx4 ECC load-reduced DIMM for Cisco UCS B200 M5, B480 M5, C220 M5, C240 M5 and C480 M5 servers

  • Capacity128GB
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 128GB

Ver 2 configuraciones más
  • 128GB single-module capacity expands server memory density
  • ECC load-reduced design improves data integrity for critical workloads
  • DDR4 2933 CL21 speed matches Cisco UCS platform requirements
  • 2V operation reduces power draw per installed module
  • Backward compatible with 2133, 2400 and 2666MHz systems

Server memory upgrade

This single 128GB DDR4 2933 module is built for Cisco UCS B200 M5, B480 M5, C220 M5, C240 M5 and C480 M5 servers. It delivers ECC load-reduced operation at 1.2V for data-integrity workloads. It will not work in standard desktop computers and cannot be mixed with unbuffered or registered ECC DIMMs.

Capacity and headroom

The 128GB stick provides a large single-slot footprint for virtualization, in-memory databases or heavy container density. It runs at PC4-23400 CL21 and steps down to 2666, 2400 or 2133 MHz when the platform requires. Systems limited to lower per-slot ranks or densities will not accept this 4Rx4 configuration.

Thermals, noise and power

Operating at the standard 1.2V DDR4 voltage, the module draws minimal power and produces no audible noise. No heat spreader is fitted, so airflow through the server chassis handles cooling. Power consumption scales with population count, not with this individual DIMM alone.

Puntos fuertes

  • 128GB single-module capacity expands server memory density
  • ECC load-reduced design improves data integrity for critical workloads
  • DDR4 2933 CL21 speed matches Cisco UCS platform requirements
  • 2V operation reduces power draw per installed module
  • Backward compatible with 2133, 2400 and 2666MHz systems

Especificaciones

BrandOWC
Part Number2L9D44R4128G
Capacity128GB
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemCisco UCS B200 M5
Cisco UCS B480 M5
Cisco UCS C220 M5
Cisco UCS C240 M5
Cisco UCS C480 M5

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Preguntas sobre este artículo

Will this 128GB DDR4 2933 CL21 4Rx4 ECC LRDIMM run alongside my existing 2133MHz or 2400MHz modules in a Cisco UCS C220 M5?

The module is backward compatible with 2133MHz, 2400MHz and 2666MHz speeds, so it will downclock to match slower DDR4 ECC LRDIMM already installed in the C220 M5.

How can I confirm the 288-pin 1.2V ECC Load Reduced DIMM is detected correctly after installation in a B200 M5?

Check the Cisco UCS BIOS or Cisco IMC inventory; it should show a single 128GB DDR4 2933 PC4-23400 CL21 4Rx4 LRDIMM with ECC active and no memory errors reported.

Does the 2L9D44R4128G package include only the 128GB DDR4 2933 CL21 4Rx4 ECC LRDIMM, or are any cables or brackets supplied?

The upgrade consists of the single 128GB DDR4 2933 PC4-23400 CL21 4Rx4 288-pin 1.2V ECC Load Reduced DIMM; no cables, brackets or additional hardware are included.

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