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Six bare green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 768GB (6x128GB) DDR5 4800 CL40 ECC RDIMM SuperMicro Server memory upgrade

SKU CH-22BB-MRCC2

Six 128 GB DDR5 modules provide 768 GB of ECC registered memory at 4800 MT/s for SuperMicro Hyper SuperServer systems

  • Capacity768GB (6 x 128GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 768 GB total capacity across six 128 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design detects and corrects data errors
  • CL40 latency at 1.1 V operating voltage
  • Validated for SuperMicro Hyper SuperServer SYS-121H-TNR SYS-221H-TNR SYS-221H-TN24R

Capacity and purpose

This kit provides 768GB of DDR5 4800 ECC registered memory across six 128GB modules. It is built for SuperMicro Hyper SuperServer systems that require high-density registered DIMMs with error correction for mission-critical workloads.

Compatibility check

Verify that your SuperMicro SYS-121H-TNR, SYS-221H-TNR or SYS-221H-TN24R platform supports 4Rx4 DDR5 RDIMMs at 1.1V and can address the full 768GB across the available 288-pin slots. Confirm the motherboard BIOS recognises registered ECC modules of this rank configuration before ordering.

Build integration

The modules install directly into the server's DDR5 RDIMM slots without heat spreaders, leaving clearance for standard CPU coolers and chassis airflow. Registered buffering reduces electrical load on the memory controller, freeing signal margin for stable operation across all populated channels.

Highlights

  • 768 GB total capacity across six 128 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design detects and corrects data errors
  • CL40 latency at 1.1 V operating voltage
  • Validated for SuperMicro Hyper SuperServer SYS-121H-TNR SYS-221H-TNR SYS-221H-TN24R

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K6
Capacity768GB (6 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 Content768GB (6X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What does the kit contain and do I need to buy anything extra?

The kit contains six 128 GB DDR5 4800 CL40 ECC registered DIMMs for a total of 768 GB. No extra memory parts are required.

How do I decide between the available capacity options?

This kit is a single 768 GB configuration (6 × 128 GB). Choose it when your SuperMicro server needs the maximum supported memory.

What does the 4800 MT/s rating mean once the modules are installed?

The modules run at DDR5 4800 (PC5-38400) with CL40 latency at 1.1 V, delivering the rated bandwidth and error-correction for compatible SuperMicro systems.

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