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Eight green DDR4 LRDIMM sticks, 288-pin, no heat spreaders

OWC

OWC 2L9D48R41TBK 1TB (8x128GB) DDR4 2933 ECC LRDIMM memory upgrade

SKU CH-NPBT-TTRWC

Eight 128 GB DDR4 2933 ECC load-reduced DIMMs add 1 TB to a PowerEdge C4140 with Cascade Lake CPUs

  • Capacity1TB (8 x 128GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 1TB (8 x 128GB)

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  • Massive 1 TB capacity from eight 128 GB modules
  • DDR4 2933 MHz speed with CL21 latency for responsive server workloads
  • ECC load-reduced design protects data integrity in critical applications
  • 2 V operation reduces power draw in dense configurations
  • Backward compatible with 2133, 2400 and 2666 MHz systems

Server memory kit

This OWC kit delivers 1TB of DDR4 2933 ECC Load-Reduced memory across eight 128GB modules for the PowerEdge C4140 with Cascade Lake CPUs. The 288-pin LRDIMMs operate at 1.2V with CL21 latency and meet JEDEC and RoHS standards. Each module uses an 8Rx4 organisation to maximise density in supported server platforms.

Workstation and server builders

This upgrade suits administrators expanding memory in a compatible Dell PowerEdge C4140 running Cascade Lake processors. It will not work in standard desktop PCs, consumer workstations or any system that requires unbuffered or registered ECC DIMMs. Buyers needing non-ECC memory or lower capacities should look elsewhere.

Build integration

The kit installs directly into the server's 288-pin DDR4 slots and is backward compatible with 2133, 2400 and 2666MHz bus speeds. No heat spreaders are fitted, so airflow follows the chassis design. The Load-Reduced architecture reduces electrical load on the memory controller, freeing headroom for full population across all channels.

Puntos fuertes

  • Massive 1 TB capacity from eight 128 GB modules
  • DDR4 2933 MHz speed with CL21 latency for responsive server workloads
  • ECC load-reduced design protects data integrity in critical applications
  • 2 V operation reduces power draw in dense configurations
  • Backward compatible with 2133, 2400 and 2666 MHz systems

Especificaciones

BrandOWC
Part Number2L9D48R41TBK
Capacity1TB (8 x 128GB)
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank8Rx4
Heat SpreaderNo
Compatible SystemPowerEdge C4140 (CascadeLake CPU)

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Preguntas sobre este artículo

What server model must I already own for this 8-module DDR4 2933 LRDIMM kit to be compatible?

The kit is validated for the Dell PowerEdge C4140 equipped with Cascade Lake CPUs and will not work in standard desktop systems.

Can I keep my existing 2133 MHz, 2400 MHz or 2666 MHz DDR4 LRDIMMs and add these 2933 MHz modules alongside them?

The modules are backward-compatible with 2133 MHz, 2400 MHz and 2666 MHz speeds, but LRDIMMs cannot be mixed with unbuffered or registered ECC DIMMs.

How can I verify the 1 TB kit is running at the correct 2933 MT/s with CL21 timings after installation?

Check the BIOS memory information or use a tool such as dmidecode to confirm each 128 GB module reports DDR4-2933, PC4-23400 and CAS latency 21.

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