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

OWC

OWC 128GB DDR4 3200 CL22 4Rx4 288-pin 1.2V ECC LRDIMM 3L2D44R4128G

SKU CH-1K8H-XAKFK

128 GB DDR4 3200 ECC load-reduced DIMM for Gigabyte R182-series servers and workstations

  • Capacity128GB
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS Latency22
  • Voltage1.2V
  • ECCYes

Capacity 128GB

Struck-through versions exist but are not stocked here.

  • 128 GB capacity lets servers handle large workloads
  • DDR4 3200 speed with CL22 latency for responsive data access
  • ECC load-reduced design protects data integrity in critical systems
  • 2 V operation reduces power draw per module
  • Validated for Gigabyte R182-N20, R182-NA0, R182-NA1, R182-NC0, R182-P91

128GB DDR4 ECC LRDIMM for Gigabyte Servers

This 128GB DDR4 3200 CL22 module targets administrators upgrading Gigabyte R182-N20, R182-NA0, R182-NA1, R182-NC0 or R182-P91 platforms. The load-reduced ECC design serves workstation and server workloads that demand error correction and high density per slot. It will not operate in standard desktop computers and cannot be mixed with unbuffered or registered ECC memory.

Sustained load behaviour at 3200MHz

Rated at DDR4 3200 (PC4-25600) with CAS latency 22 and 1.2V operation, the module maintains JEDEC-standard timing under continuous server workloads. Backward compatibility with 2133MHz, 2400MHz, 2666MHz and 2933MHz buses allows deployment in mixed-speed configurations without downclocking penalties. The 4Rx4 organisation distributes electrical load across ranks to stabilise signal integrity during extended compute tasks.

Build quality and daily implications

The 288-pin LRDIMM form factor fits server DIMM slots directly; no heat spreader is present, relying on chassis airflow for thermal management. JEDEC and RoHS compliance ensures warranty-safe installation in OEM environments. Micron MTA72ASS16G72LZ3G2, Samsung M386AAG40AM3-CWE and Hynix HMABAGL7ABR4N-XNT5 cross-references confirm interchangeability with existing fleets. Buyers needing non-ECC desktop memory or smaller capacities should look elsewhere.

Highlights

  • 128 GB capacity lets servers handle large workloads
  • DDR4 3200 speed with CL22 latency for responsive data access
  • ECC load-reduced design protects data integrity in critical systems
  • 2 V operation reduces power draw per module
  • Validated for Gigabyte R182-N20, R182-NA0, R182-NA1, R182-NC0, R182-P91

Specifications

BrandOWC
Part Number3L2D44R4128G
Capacity128GB
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 3200 (PC4 25600)
CAS Latency22
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemGigabyte R182-N20
Gigabyte R182-NA0
Gigabyte R182-NA1
Gigabyte R182-NC0
Gigabyte R182-P91

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How much power does the 1.2 V DDR4 3200 LRDIMM draw when the server runs 24/7?

The module operates at 1.2 V, the standard JEDEC voltage for DDR4, so power draw per DIMM stays at the spec-defined level for 128 GB load-reduced memory.

What motherboard and CPU combination must I already own for this 288-pin ECC LRDIMM to function?

It is validated for Gigabyte R182-N20, R182-NA0, R182-NA1, R182-NC0 and R182-P91 servers that support DDR4 ECC load-reduced DIMMs.

Can I keep my existing 2666 MHz ECC registered DIMMs and add this 3200 MHz LRDIMM alongside them?

No — load-reduced modules cannot be mixed with registered or unbuffered ECC memory; all slots must use the same LRDIMM type.

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