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Twelve green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 1.5TB (12x128GB) DDR5 4800 ECC RDIMM CL40 1.1V 4Rx4 SuperMicro Server memory upgrade

SKU CH-HJS5-3KMFB

A 1.5 TB DDR5 registered ECC kit of twelve 128 GB modules at 4800 MHz CL40 1.1 V for SuperMicro Hyper SuperServer systems

  • Capacity1.5TB (12 x 128GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 5 TB total capacity with twelve 128 GB modules
  • DDR5 4800 speed rated at PC5-38400
  • ECC registered RDIMM for data integrity
  • 4Rx4 organisation on 288-pin form factor
  • 1 V operating voltage for efficient power use

1.5 TB DDR5-4800 ECC RDIMM kit

This 1.5 TB kit contains twelve 128 GB DDR5-4800 registered ECC modules built for SuperMicro Hyper SuperServer platforms. Each module runs at 1.1 V with CL40 latency and a 4Rx4 organisation across 288 pins. The memory is validated for the SYS-121H-TNR, SYS-221H-TNR and SYS-221H-TN24R systems. It targets administrators expanding capacity in compatible SuperMicro servers.

Suited for SuperMicro Hyper SuperServer upgrades

The kit fits the three listed SuperMicro models that accept 12 x 128 GB DDR5-4800 RDIMMs. Builders needing a different form factor, non-ECC memory, lower capacities or higher speeds should look at other products. Systems outside the named SuperMicro range are not covered by this compatibility statement.

Fills twelve DDR5 RDIMM slots at 1.1 V

Populating all twelve slots delivers the full 1.5 TB without mixing module sizes. The registered design and ECC function require a motherboard that supports DDR5 RDIMM operation at 4800 MT/s. No heat spreaders are included, so chassis airflow must handle the thermal load. The kit frees the buyer from sourcing individual modules and matching part numbers.

Points forts

  • 5 TB total capacity with twelve 128 GB modules
  • DDR5 4800 speed rated at PC5-38400
  • ECC registered RDIMM for data integrity
  • 4Rx4 organisation on 288-pin form factor
  • 1 V operating voltage for efficient power use

Caractéristiques

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K12
Capacity1.5TB (12 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 Content1.5TB (12X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions sur cet article

Must the SuperMicro SYS-121H-TNR already have 12 free 288-pin DDR5 slots to accept this 12-module kit?

Yes, the kit contains 12 registered 288-pin DDR5 RDIMMs and each occupies one slot, so 12 empty slots are required.

Will these 4Rx4 DDR5 4800 RDIMMs run at the rated 4800 MT/s when mixed with slower DDR5 modules already in the server?

The server memory controller will clock all installed DDR5 RDIMMs to the lowest common speed, so slower modules would reduce these 4800 MT/s modules to that lower rate.

How can I confirm the full 1.5 TB is recognised and ECC is active after installing the 12 modules?

Check the BIOS memory map or the operating system's memory report for 1.5 TB total and verify ECC status shows enabled or corrected errors are being logged.

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