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Green printed circuit board DDR4 RDIMM module with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 64GB DDR4 3200 2Rx4 ECC RDIMM memory upgrade

SKU CH-R5B9-SJRAJ

A 64GB DDR4 3200 ECC RDIMM module using 2Rx4 Samsung, Micron or Hynix chips at 1.2V for HPE servers

  • Total capacity64 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 64GB capacity expands server memory headroom
  • DDR4 3200 speed matches HPE registered Smart Memory spec
  • ECC registered design protects data integrity under load
  • 2V operation reduces power draw per module
  • 2Rx4 288-pin RDIMM fits compatible HPE server slots

64GB DDR4 3200 ECC RDIMM module

This 64GB DDR4 3200 ECC RDIMM module targets IT professionals who manage HPE servers and workstations. The single stick delivers 64GB of registered memory with error correction for mission-critical workloads. It operates at 1.2V with a CAS latency of 22 cycles.

Replaces lower-capacity or non-ECC sticks

The module upgrades systems that currently run smaller registered DIMMs or lack error correction entirely. The jump is worth it when workloads demand maximum density per slot and data integrity under continuous operation. Compatibility is validated for HPE part number P56431-B21.

Sustained load behaviour with major OEM chips

Built with Samsung, Micron or Hynix components, the 2Rx4 registered design maintains stability during extended stress testing. Error-correcting code detects and corrects single-bit errors without halting the system. The 1.2V operation keeps thermal output predictable during long-running compute tasks.

How it compares

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

Price $452.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $7.08 per GB
Cheaper than about 57% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineHPE Server/Workstation Compatible Series Memory
Model nameHPE DDR4 3200 MHz ECC RDIMM Registered Server Memory
Part numberMR25600-924K1
Total capacity64 GB
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHPE
In the box
Included items64 GB (1 × 64 GB) DDR4 3200 MHz PC4-25600 2Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Does the 288-pin DDR4 RDIMM fit a standard server DIMM slot?

Yes, the 288-pin DDR4 RDIMM form factor matches standard registered DIMM slots used in compatible HPE servers.

What is the correct way to seat the module so the ECC function works?

Align the notch with the slot key, press firmly until both side clips click, and verify the system reports 64GB at 3200MHz with ECC active.

Will the Samsung, Micron or Hynix chips need replacement under normal server load?

The modules are stress-tested under load and covered by a lifetime replacement warranty, so no chip replacement is expected in normal operation.

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