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Green DDR5 server memory module, 288 pins, no heat spreader, 128GB label

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 ECC RDIMM 4Rx4 CL40 288-Pin 1.1V SuperMicro Compatible

SKU CH-55X9-C1JK4

A 128GB DDR5 4800 registered ECC RDIMM with CL40 latency and 1.1V operation, built for SuperMicro server platforms

  • Capacity128GB
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128GB capacity supports large server workloads
  • DDR5 4800 speed delivers high data throughput
  • ECC registered design protects data integrity
  • 1V operation reduces power consumption
  • Validated for SuperMicro FatTwin and SuperServer systems

Capacity and Compatibility

This 128GB DDR5 RDIMM module delivers registered ECC memory for Supermicro server platforms. The single-stick design suits administrators who need maximum density per slot in FatTwin or SuperServer systems. Buyers requiring non-ECC or unbuffered memory for consumer motherboards cannot use this module.

Thermals and Power

Operating at 1.10V, the module runs without a heat spreader and draws minimal power during typical server workloads. Registered buffering reduces electrical load on the memory controller, contributing to stable thermals in densely populated chassis. Acoustic impact is negligible as the module has no active cooling.

Sustained Load Behaviour

CL40 latency and 4Rx4 organisation support consistent throughput during extended compute tasks such as virtualisation or database processing. ECC protection corrects single-bit errors in real time, maintaining data integrity over long runs. Systems needing higher frequencies or lower latencies for burst-oriented workloads will not achieve those targets with this specification.

Highlights

  • 128GB capacity supports large server workloads
  • DDR5 4800 speed delivers high data throughput
  • ECC registered design protects data integrity
  • 1V operation reduces power consumption
  • Validated for SuperMicro FatTwin and SuperServer systems

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro 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 SystemSupermicro
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 the 288-pin DDR5 RDIMM and which step is often missed?

Align the notch on the module with the slot key, press firmly until both side clips click, then verify the system recognises the full 128GB capacity in BIOS — skipping the clip check is the common error.

What maintenance or replacement will the 1.1V ECC registered module need over time?

The module has no heat spreader and no moving parts; keep server airflow clean and re-seat the RDIMM only if ECC logs report correctable errors after years of continuous operation.

At what point does the CL40 4Rx4 configuration hit its limit during sustained workloads?

The registered buffer and 4Rx4 organisation maintain stability up to the rated 4800 MT/s; the first limit encountered is the memory-controller bandwidth ceiling of the SuperMicro platform.

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