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Two green DDR5 RDIMM sticks in anti-static tray

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 4800 ECC RDIMM CL40 1Rx4 memory upgrade

SKU CH-D6FJ-A6HE4

A 64 GB kit of two 32 GB DDR5 4800 ECC registered DIMMs for compatible Supermicro servers

  • Capacity64GB (2 x 32GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 64 GB total capacity in a 2 x 32 GB kit
  • DDR5 4800 speed rated at PC5-38400
  • ECC registered RDIMM protects data integrity in servers
  • CL40 CAS latency at 1.1 V operating voltage
  • Validated for Supermicro Hyper SuperServer SYS-121H-TNR SYS-221H-TNR SYS-221H-TN24R

64 GB DDR5 ECC RDIMM kit for Supermicro servers

This 64 GB kit contains two 32 GB DDR5 4800 registered DIMMs built with ECC and a 1Rx4 organisation. It is designed for Supermicro Hyper SuperServer models SYS-121H-TNR, SYS-221H-TNR and SYS-221H-TN24R. The modules operate at 1.1 V and carry a CL40 latency rating.

Sustained-load behaviour with ECC registered design

Registered buffering reduces electrical load on the memory controller, allowing stable operation across all populated slots during continuous server workloads. On-die ECC corrects single-bit errors in real time, preventing data corruption during long compute runs. The 1.1 V operating voltage limits heat rise inside dense chassis configurations.

Straightforward 288-pin installation

Each module keys into a standard 288-pin DDR5 RDIMM socket without tools or heat-spreader clearance issues. The main installation risk is populating slots in the wrong sequence for the specific Supermicro motherboard, which can prevent the system from posting or disable ECC functionality. Consult the server manual for the correct population order before seating the DIMMs.

Highlights

  • 64 GB total capacity in a 2 x 32 GB kit
  • DDR5 4800 speed rated at PC5-38400
  • ECC registered RDIMM protects data integrity in servers
  • CL40 CAS 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 NumberMR38400-314K2
Capacity64GB (2 x 32GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content64GB (2X32GB) DDR5 4800MHZ PC5-38400 1Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How much power does this 1.1 V DDR5 4800 kit draw when the server runs all day?

Each module operates at 1.1 V; total system power depends on the platform and workload, so consult the server documentation for exact figures.

What server platform is required for these 288-pin ECC RDIMMs to function?

The kit is validated for SuperMicro Hyper SuperServer SYS-121H-TNR, SYS-221H-TNR and SYS-221H-TN24R systems.

Can this 1Rx4 registered DDR5 kit share memory channels with existing DDR5 RDIMMs of different rank or speed?

Mixing ranks or speeds on the same channel is not recommended; populate identical modules per channel for stable operation.

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