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Green 288-pin DDR4 LRDIMM circuit board with black memory chips

OWC

OWC 3L2D44R4128G 128GB DDR4 3200 CL22 4Rx4 1.2V ECC Load Reduced LRDIMM server RAM

SKU CH-DZTM-53WQE

A 128 GB DDR4 3200 CL22 4Rx4 1.2 V ECC load-reduced LRDIMM for servers, workstations and NAS systems, backward compatible with 2133, 2400, 2666 and 2933 MHz

  • Capacity128GB
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCYes
  • 128GB capacity supports dense virtualization workloads
  • DDR4 3200 speed with CL22 latency
  • ECC load-reduced design protects data integrity
  • 2V operation reduces server power draw
  • Backward compatible with 2133, 2400, 2666, 2933MHz systems

Server-grade capacity for dense workloads

This 128 GB DDR4 3200 CL22 ECC Load Reduced DIMM targets servers, workstations and NAS systems that require maximum memory density per slot. The 4Rx4 organisation and 1.2 V operation suit platforms qualified for LRDIMM technology. It will not work in standard desktop computers and cannot be mixed with unbuffered or registered ECC modules.

Low-voltage operation for chassis thermals

At 1.2 V the module draws minimal power for its capacity, helping dense configurations stay within thermal limits without additional cooling. JEDEC-standard signalling at 3200 MT/s with CL22 latency delivers predictable bandwidth while the load-reduced buffer reduces electrical load on the memory controller. No heat spreader is fitted, so airflow across the PCB is the only cooling path.

Direct replacement for qualified Micron parts

The part number 3L2D44R4128G is validated against Micron MTA72ASS16G72LZ3G2, MTA72ASS16G72LZ3G2F1 and MTA72ASS16G72LZ3G2B3, simplifying procurement for approved hardware lists. Backward compatibility with 2133, 2400, 2666 and 2933 MT/s platforms allows staged upgrades. JEDEC and RoHS compliance plus a limited lifetime warranty with free technical support complete the package.

Points forts

  • 128GB capacity supports dense virtualization workloads
  • DDR4 3200 speed with CL22 latency
  • ECC load-reduced design protects data integrity
  • 2V operation reduces server power draw
  • Backward compatible with 2133, 2400, 2666, 2933MHz systems

Caractéristiques

BrandOWC
Part Number3L2D44R4128G
Capacity128GB
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo

Questions sur cet article

How do I install the 288-pin DDR4 LRDIMM and what step is often missed?

Align the notch on the module with the slot key, press firmly until both retention clips click, and verify the server BIOS recognises the full 128GB capacity at 3200MHz.

What maintenance or replacement will this 128GB LRDIMM need later?

No scheduled maintenance is required; the module has no heat spreader and runs at 1.2V, so replacement only occurs if a memory error appears during sustained operation.

What limit appears first under sustained load with this CL22 3200MHz module?

The CAS latency of 22 cycles at 3200MHz sets the timing ceiling before bandwidth or thermal constraints become noticeable.

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