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

NEMIX RAM

NEMIX RAM DDR5 256GB (2x128GB) 6400MHz CL52 1.1V 2Rx4 ECC RDIMM for Supermicro SYS-122HA-TN-LCC

SKU CH-NFGH-543S0

256GB DDR5 ECC RDIMM kit with CL52 latency and 1.1V operation for Supermicro SYS-122HA-TN-LCC

  • Capacity256GB (2 x 128GB)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • Compatible SystemSupermicro
  • 256 GB total capacity across two 128 GB modules
  • DDR5 6400 MHz speed for high-throughput server workloads
  • ECC registered design detects and corrects data errors
  • 1 V operation reduces power draw in dense configurations
  • Validated for Supermicro SYS-122HA-TN-LCC systems

Supermicro SYS-122HA-TN-LCC DDR5 RDIMM Kit

This 256GB kit supplies two 128GB DDR5 registered DIMMs built for the Supermicro SYS-122HA-TN-LCC server. Each module runs at 6400MHz with a CL52 latency and operates at 1.1V. The 2Rx4 organisation and ECC support target enterprise workloads that demand data integrity and high capacity per slot.

Upgrade Path From Lower-Capacity Registered DDR5

The kit replaces smaller RDIMM sets or mixed-capacity configurations that limit total memory on this platform. Moving to 2x128GB is worth it when applications need the full 256GB in a two-slot footprint and can benefit from the 6400MHz transfer rate. Systems already populated with slower registered DDR5 will not see a latency improvement because CL52 is fixed at this speed grade.

DDR5 RDIMM Electrical And Mechanical Limits

The 288-pin DDR5 RDIMM interface defines the key notch position, pin count and 1.1V signalling that this kit follows. Registered buffering adds a clock cycle of command latency, which is standard for server memory but prevents use in unbuffered desktop boards. The 2Rx4 rank structure fits the platform’s memory controller limits; exceeding the supported rank count per channel would prevent the system from posting.

Highlights

  • 256 GB total capacity across two 128 GB modules
  • DDR5 6400 MHz speed for high-throughput server workloads
  • ECC registered design detects and corrects data errors
  • 1 V operation reduces power draw in dense configurations
  • Validated for Supermicro SYS-122HA-TN-LCC systems

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR51200-724K2
Capacity256GB (2 x 128GB)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL52
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank2Rx4
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content256GB (2 x 128GB) DDR5 6400MHz PC5-51200 2Rx4 1.1V 288-PIN ECC RDIMM KIT

Questions about this item

Will the 288-pin DDR5 RDIMM modules fit the Supermicro SYS-122HA-TN-LCC memory slots?

Yes, this kit uses the standard 288-pin DDR5 RDIMM form factor that matches the server's DIMM sockets.

What is the correct order for installing the two 128GB modules in the Supermicro SYS-122HA-TN-LCC?

Populate the slots indicated for channel A and channel B in the motherboard manual; the common mistake is placing both modules in the same channel.

When should the ECC RDIMM kit be replaced in a 24/7 Supermicro SYS-122HA-TN-LCC deployment?

Replace modules only if the system logs uncorrectable ECC errors or fails memory diagnostics during scheduled maintenance windows.

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