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Two green DDR5 RDIMM modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 4800 PC5-38400 4Rx4 CL40 1.1V ECC RDIMM memory upgrade

SKU CH-53TX-CRRAR

A 256 GB DDR5 ECC registered server kit built for SuperMicro Hyper SuperServer platforms

  • Capacity256GB (2 x 128GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 256GB total capacity with two 128GB modules for high-density server workloads
  • DDR5 4800 speed rated at PC5-38400 for enterprise bandwidth demands
  • ECC registered RDIMM design with 4Rx4 organisation for data integrity
  • 1V operating voltage reduces power draw in dense configurations
  • Validated for SuperMicro Hyper SuperServer SYS-121H-TNR SYS-221H-TNR SYS-221H-TN24R

Compatible Server Memory Kit

This 256 GB kit contains two 128 GB DDR5 4800 registered ECC RDIMMs built for Supermicro Hyper SuperServer systems including SYS-121H-TNR, SYS-221H-TNR and SYS-221H-TN24R. It targets administrators who need maximum registered capacity on supported platforms. Modules use major OEM chips from Samsung, Micron or Hynix and run at 1.10 V with CL40 latency.

Thermals and Power Profile

Operating at the standard DDR5 voltage of 1.1 V, the modules draw minimal power for high-density registered memory. No heat spreaders are fitted, so airflow through the server chassis handles cooling without added acoustic load. Registered buffering keeps electrical loading low on the memory controller during sustained workloads.

Build Integration

The 288-pin RDIMM form factor fits the designated Supermicro motherboards directly; no adapters or special risers are required. ECC and registered operation free the system for mission-critical data integrity while the dual-rank 4Rx4 organisation maximises capacity per channel. Buyers needing non-ECC unbuffered memory or consumer desktop compatibility should select a different product class.

Points forts

  • 256GB total capacity with two 128GB modules for high-density server workloads
  • DDR5 4800 speed rated at PC5-38400 for enterprise bandwidth demands
  • ECC registered RDIMM design with 4Rx4 organisation for data integrity
  • 1V operating voltage reduces power draw in dense configurations
  • Validated for SuperMicro Hyper SuperServer SYS-121H-TNR SYS-221H-TNR SYS-221H-TN24R

Caractéristiques

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K2
Capacity256GB (2 x 128GB)
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 Content256GB (2X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions sur cet article

How do I install the 288-pin DDR5 RDIMM modules in my SuperMicro server and what step is often missed?

Power down, open the chassis, align each module's key notch with the slot, press firmly until both retention clips click, then verify in BIOS that all 256 GB are recognised at 4800 MT/s.

What maintenance or replacement will the 4Rx4 ECC registered kit need over time?

No routine maintenance is required; the modules run at 1.1 V with on-die ECC, so only a firmware update or a failed DIMM would prompt replacement.

What limit appears first when the 128 GB dual-rank sticks run sustained workloads?

The CL40 latency at 4800 MT/s sets the throughput ceiling before thermal or voltage constraints become factors.

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