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Green rectangular DDR5 memory module with gold edge connectors and black chips, no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 4Rx4 ECC RDIMM HPE P50313-B21 memory upgrade

SKU CH-A2JN-VMSG7

128 GB DDR5 4800 ECC registered RDIMM for HPE servers, 4Rx4 CL40 at 1.1 V

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128GB capacity for large server workloads
  • DDR5 4800 speed with PC5-38400 bandwidth
  • ECC registered design protects data integrity
  • 1V operation reduces power consumption
  • Compatible with HPE P50313-B21 systems

128GB DDR5 RDIMM for HPE Servers

This registered ECC module delivers 128GB of DDR5 4800 memory in a single 288-pin DIMM. It is built for HPE servers and workstations that require the P50313-B21 part number. The 4Rx4 organisation and 1.10V operating voltage match the platform specification.

Sustained workload stability

All modules undergo rigorous stress testing under load before shipment to verify reliability in mission-critical environments. Registered buffering and on-die ECC maintain data integrity during continuous operation. The CL40 latency and PC5-38400 bandwidth support consistent throughput for virtualisation and database tasks.

4Rx4 rank configuration

The quad-rank x4 layout determines how many modules the memory controller can address per channel. Systems limited to eight ranks per channel can install only two of these DIMMs per channel. Verify the platform rank limit before purchasing.

How it compares

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

Price $4,158.99
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 $32.49 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

How much power does the 1.1 V DDR5 4800 module draw when the server runs continuously?

The module operates at 1.10 V, the standard DDR5 voltage, which helps limit power draw and heat during sustained workloads.

What must the system already provide for this 288-pin RDIMM to function?

An HPE server or workstation with DDR5 RDIMM slots that support ECC registered memory at 4800 MT/s and 4Rx4 rank configuration.

Can this 4Rx4 CL40 stick share a memory channel with existing 2Rx4 modules in the same HPE platform?

Mixing 4Rx4 and 2Rx4 ranks on the same channel is not recommended; populate identical ranks per channel for stable operation.

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