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Green DDR5 RDIMM module with black chips, no heat spreader, 288 pins

NEMIX RAM

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

SKU CH-2R0S-G1HXD

A 128GB DDR5 4800 ECC RDIMM with CL40 latency, 1.1V operation and 4Rx4 organisation for HPE servers

  • Capacity128GB
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128 GB capacity handles heavy server workloads
  • DDR5 4800 MT/s speed delivers high data throughput
  • ECC registered design protects data integrity
  • 1 V operation reduces power consumption
  • Compatible with HPE P43334-K21 systems

HPE Server Memory Upgrade

This 128GB DDR5 RDIMM is built for HPE server and workstation platforms that require registered ECC memory. It targets IT professionals who need to expand capacity in compatible systems using a single high-density module. The part is validated for the HPE P43334-K21 specification and ships new from NEMIX RAM.

Thermals Noise and Power

Operating at 1.10V, the module draws low power for its density and runs without a heat spreader. Registered buffering and ECC functionality add negligible latency overhead while maintaining signal integrity under sustained server workloads. No active cooling is required beyond standard chassis airflow.

Deciding Specification 4Rx4 Rank Configuration

The 4Rx4 organisation determines whether the memory controller can address this module at the rated 4800MT/s speed. Systems limited to dual-rank or single-rank DIMMs will not support the full capacity or may fall back to a lower data rate. Verify the platform rank limit before purchase.

Highlights

  • 128 GB capacity handles heavy server workloads
  • DDR5 4800 MT/s speed delivers high data throughput
  • ECC registered design protects data integrity
  • 1 V operation reduces power consumption
  • Compatible with HPE P43334-K21 systems

Specifications

BrandNEMIX RAM
SeriesHPE Server/Workstation Compatible Series Memory
ModelHPE DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K1
Capacity128GB
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemHPE
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank4Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content128GB (1X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

How do I install this 288-pin DDR5 RDIMM in my HPE server and what step is often missed?

Power off the server, open the chassis, align the notch on the 288-pin DDR5 RDIMM with the slot key, press firmly until both ejector clips lock, then verify in BIOS that the 128GB module registers at 4800 MT/s with ECC active.

What maintenance or replacement will this 4Rx4 registered ECC module need over its service life?

The module has no heat spreader and no moving parts, so no scheduled maintenance is required; if a correctable ECC error count rises above the platform threshold, replace the DIMM under the lifetime replacement warranty.

What limit appears first when this CL40 1.1V DIMM runs sustained workloads?

The CAS latency of 40 cycles at 4800 MT/s sets the timing floor, so sustained throughput is bounded by the 38400 MB/s PC5-38400 rating before thermal or voltage limits are reached.

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