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Single green DDR5 RDIMM module with black chips, no heat spreader, 288 gold pins, 128GB label

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 4Rx4 CL40 1.1V 288-pin ECC RDIMM HPE memory upgrade

SKU CH-DHHX-GW324

128 GB DDR5 4800 ECC registered server memory with CL40 latency, 1.1 V operation and 4Rx4 organisation for HPE platforms

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128GB capacity supports heavy server workloads
  • DDR5 4800 speed delivers high data throughput
  • ECC registered design protects data integrity
  • 1V operation reduces power consumption
  • Compatible with HPE P46972-H21, P58360-H21, P62605-B21

HPE-Compatible DDR5 4800 RDIMM

This 128 GB DDR5 4800 ECC registered module is built for HPE servers and workstations. It carries the PC5-38400 speed rating and a CAS latency of CL40. The single 4Rx4 rank design targets administrators who need maximum capacity per slot in supported platforms.

Single-Module 128 GB Upgrade

The stick occupies one 288-pin DDR5 RDIMM slot and runs at 1.10 V. Registered buffering and on-die ECC protect data integrity without requiring additional hardware. It matches HPE part numbers P46972-H21, P58360-H21 and P62605-B21 for direct replacement or capacity expansion.

Passive Cooling at 1.10 V

No heat spreader is fitted, so airflow from the chassis fans cools the DRAM directly. The low 1.10 V operating voltage limits power draw per module, keeping thermal contribution modest in densely populated memory channels. Acoustic impact is negligible because the module adds no moving parts.

How it compares

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

Price $4,074.99
Pricier than about 77% 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).
Price per GB $31.84 per GB
Pricier than about 90% 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 DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-744K1
Total capacity128 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsHPE
In the box
Included items128 GB (1 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

What is the CAS latency of this DDR5 module?

This module runs at CL40 CAS latency, which is the timing the memory controller will use for every access cycle.

Does the module include a heat spreader for thermal management?

No, the specification lists no heat spreader, so the bare PCB relies on chassis airflow for cooling during continuous operation.

Which HPE part numbers is this 128 GB RDIMM validated against?

It is compatible with HPE part numbers P46972-H21, P58360-H21 and P62605-B21 for direct replacement.

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