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Green printed circuit board with gold edge connectors and black memory chips in a single 288-pin DDR5 RDIMM module

NEMIX RAM

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

SKU CH-CQ99-TF4QB

128GB DDR5 4800 ECC RDIMM CL40 1.1V 4Rx4 module for SuperMicro GPU SuperServers

  • Capacity128GB
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128 GB capacity expands server memory headroom for large datasets
  • DDR5 4800 speed delivers high bandwidth for demanding workloads
  • ECC registered design protects data integrity in mission-critical systems
  • 10 V operation reduces power draw per module
  • Validated for Supermicro SYS-821GE-TNHR, SYS-821GV-TNR and SYS-421GE-TNRT

128GB DDR5 ECC RDIMM for Supermicro Servers

This 128GB DDR5 4800 registered DIMM is built for Supermicro GPU SuperServer and workstation platforms. It delivers error-correcting code memory in a single module for high-density server configurations.

Installation requires matching registered DIMM

The 288-pin DDR5 RDIMM installs like standard server memory but must be used in systems that accept 4Rx4 registered modules at 1.1V. Mixing with unbuffered or non-ECC DIMMs will prevent boot.

Suited for IT teams expanding Supermicro 821

Buyers needing non-ECC memory, desktop DDR5, or lower-capacity modules for consumer motherboards should look elsewhere. This module targets registered ECC server platforms only.

Highlights

  • 128 GB capacity expands server memory headroom for large datasets
  • DDR5 4800 speed delivers high bandwidth for demanding workloads
  • ECC registered design protects data integrity in mission-critical systems
  • 10 V operation reduces power draw per module
  • Validated for Supermicro SYS-821GE-TNHR, SYS-821GV-TNR and SYS-421GE-TNRT

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 can I verify the module runs at 4800 MT/s with CL40 after installation?

Enter the system BIOS or UEFI and confirm the memory frequency reads 4800 and the CAS latency shows 40.

What is included in the package and do I need extra parts?

The box contains one 128 GB 288-pin DDR5 RDIMM; no additional components are required for installation.

Which capacity and rank configuration matches the SuperMicro SYS-821GE-TNHR?

Choose the single 128 GB 4Rx4 module (part MR38400-744K1) listed for that server model.

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