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Green PCB memory module with gold edge contacts and black chips, no heat spreader

OWC

OWC 128GB DDR4 3200 ECC LRDIMM 288-pin 4Rx4 CL22 1.2V memory upgrade

SKU CH-7XHE-72B5N

128 GB DDR4 3200 ECC load-reduced LRDIMM for Gigabyte MZ72-HB2 and R152-P30 to P33 servers

  • Total capacity128 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latency22
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Memory rank4Rx4

Capacity 128GB

  • 128 GB capacity lets servers handle larger workloads
  • ECC load-reduced design maintains data integrity under heavy use
  • DDR4 3200 speed with CL22 latency delivers responsive performance
  • 2 V operation reduces power draw in dense configurations
  • Validated for Gigabyte MZ72-HB2 and R152-P30 through P33 systems

Target System Compatibility

This 128GB DDR4 3200 ECC LRDIMM is built for the Gigabyte MZ72-HB2 and R152-P30 through R152-P33 platforms. It serves workstations, servers and NAS appliances that require load-reduced registered memory with error correction. The module will not function in standard desktop computers and cannot be mixed with unbuffered or registered ECC DIMMs.

Installation Notes

The 288-pin form factor seats in the server board's DDR4 slots like any DIMM, but the platform must explicitly support load-reduced ECC at 1.2V. Common issues arise when the module is paired with registered or unbuffered memory, or when the BIOS is not updated for 4Rx4 density. Verify the system's qualified-vendor list before fitting.

Sustained Load Behaviour

Rated at CL22 and PC4-25600, the module runs at 3200MHz and drops to 2933, 2666, 2400 or 2133MHz when the platform dictates. Load-reduced buffering lowers electrical load on the memory controller during continuous throughput, while ECC corrects single-bit errors in real time. The JEDEC-standard design maintains stability across extended server workloads.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $752.99
Pricier than about 57% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
CAS latency 22
Typical for this category: the median of 483 items is 22.
Price per GB $5.88 per GB
Cheaper than about 66% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number3L2D44R4128G
Total capacity128 GB
Product type288-Pin DDR4 ECC LRDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latency22
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsGigabyte MZ72-HB2
Gigabyte R152-P30
Gigabyte R152-P31
Gigabyte R152-P32
Gigabyte R152-P33

Other versions of this model

5 more in the same range

Questions about this item

How do I verify the 128GB DDR4 3200 ECC LRDIMM is recognised at full speed after installation?

Enter the system BIOS or UEFI and confirm the memory shows 128GB capacity, 3200MHz speed, CL22 latency and ECC Load Reduced status.

What comes in the box and do I need any extra parts to install the module?

The box contains the single 288-pin DDR4 ECC LRDIMM module; no additional cables, brackets or tools are required for installation in a compatible server slot.

Which capacity and rank should I choose for a Gigabyte MZ72-HB2 or R152-P30 through P33 server?

Select the 128GB 4Rx4 LRDIMM to match the validated part number 3L2D44R4128G for those Gigabyte models.

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