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Two green server memory sticks, bare circuit boards with gold contacts, no heat spreaders

OWC

OWC 256GB (2x128GB) DDR4 3200MHz CL22 ECC Load Reduced LRDIMM 1.2V 288-pin Server RAM

SKU CH-JZ1D-FB196

256 GB dual-channel DDR4 3200 ECC load-reduced kit for servers, workstations and NAS systems

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCYes

Capacity 256GB (2 x 128GB)

  • ECC Load Reduced design protects data integrity in servers
  • 256GB dual-channel kit maximises memory capacity for heavy workloads
  • DDR4 3200MHz CL22 speed handles demanding applications efficiently
  • 2V operation reduces power draw in dense configurations
  • Backward compatible with 2133, 2400, 2666 and 2933MHz systems

Server-grade capacity for enterprise workloads

This OWC kit delivers 256GB across two 128GB DDR4 3200MHz LRDIMMs. The modules implement ECC load-reduced technology with a 4Rx4 rank structure and CL22 latency. They are built for servers, workstations and NAS systems that require registered memory and cannot accept standard unbuffered DIMMs.

Low-voltage operation at 1.2V reduces thermal load

Running at 1.2V, the modules draw less power per gigabyte than higher-voltage alternatives. The load-reduced buffer lowers electrical loading on the memory bus, which helps maintain signal integrity without adding active cooling requirements. No heat spreaders are fitted, so airflow across the PCB handles dissipation in typical chassis designs.

Dual-channel kit fits 288-pin DDR4 slots

Each module uses the standard 288-pin DDR4 form factor and is backward compatible with 2133MHz, 2400MHz, 2666MHz and 2933MHz bus speeds. The kit cannot be mixed with unbuffered memory and will not work in desktop consumer platforms that lack LRDIMM support. It frees DIMM slots by concentrating 128GB per module, leaving room for further expansion where the platform allows.

Istaknuto

  • ECC Load Reduced design protects data integrity in servers
  • 256GB dual-channel kit maximises memory capacity for heavy workloads
  • DDR4 3200MHz CL22 speed handles demanding applications efficiently
  • 2V operation reduces power draw in dense configurations
  • Backward compatible with 2133, 2400, 2666 and 2933MHz systems

Specifikacije

BrandOWC
Part Number3L2D44R4256P
Capacity256GB (2 x 128GB)
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Multi-channel KitDual Channel Kit
Heat SpreaderNo

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How do I install the 288-pin DDR4 LRDIMM modules in a dual-channel server configuration?

Power down the server, open the chassis, locate the paired memory slots for dual-channel operation, align each 288-pin module's notch with the slot key, press firmly until both retention clips click, then verify the BIOS reports 256GB at 3200MHz CL22.

What maintenance or replacement will the 4Rx4 ECC Load Reduced modules need over time?

No scheduled maintenance is required; the modules have no heat spreader, so keep server airflow clean, and if a 128GB module ever fails ECC correction, replace the individual stick rather than the full 256GB kit.

At what point does the 1.2V DDR4 3200MHz CL22 limit appear during sustained workloads?

The JEDEC-rated 1.2V voltage and CL22 latency are the first limits; under continuous heavy load the memory controller will throttle speed before exceeding the 1.2V spec, so ensure adequate cooling to sustain 3200MHz operation.

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