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Two green DDR5 RDIMM modules without heat spreaders in a matched pair

NEMIX RAM

NEMIX RAM DDR5 6400 256GB 2x128GB ECC RDIMM Supermicro H13SST-G memory upgrade

SKU CH-PQ19-7WHV2

A 256 GB DDR5 6400 RDIMM kit with ECC and registered buffering, matched to the Supermicro H13SST-G motherboard

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL52
  • Voltage1.10V
  • ECCYes
  • 256 GB total capacity from two 128 GB modules
  • DDR5 6400 speed rated at PC5-51200 bandwidth
  • Registered ECC design corrects single-bit errors automatically
  • 1 V operation at CL52 latency specification
  • Verified fit for Supermicro H13SST-G motherboard

256 GB DDR5-6400 ECC RDIMM Kit

This NEMIX RAM kit provides 256 GB of DDR5-6400 registered ECC memory in two 128 GB modules. It is built for the Supermicro H13SST-G motherboard and matches the board's 288-pin RDIMM requirement, voltage and timing so the system recognises full capacity at rated speed.

Suited for Supermicro H13SST-G servers

The kit fits administrators expanding a Supermicro H13SST-G server that accepts 2Rx4 registered DIMMs at 1.1 V. It is not for systems that need unbuffered UDIMMs, SODIMMs, lower-density modules or a different DDR generation.

DDR5-6400 Registered ECC Specification

The decisive specification is DDR5-6400 (PC5-51200) with CL52 latency, 1.1 V operation and 2Rx4 registered ECC organisation. If the motherboard demands different speed, voltage, rank or buffering, this kit will not operate correctly.

Highlights

  • 256 GB total capacity from two 128 GB modules
  • DDR5 6400 speed rated at PC5-51200 bandwidth
  • Registered ECC design corrects single-bit errors automatically
  • 1 V operation at CL52 latency specification
  • Verified fit for Supermicro H13SST-G motherboard

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR51200-724K2
Capacity256GB (2 x 128GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 6400 (PC5 51200)
CAS LatencyCL52
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemSupermicro
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content256GB 2X128GB DDR5 6400MHz PC5-51200 2Rx4 1.1V 288-PIN ECC RDIMM KIT

Questions about this item

Will these 288-pin DDR5 RDIMMs physically fit the Supermicro H13SST-G motherboard DIMM slots?

Yes, the kit uses the 288-pin Registered RDIMM form factor that the H13SST-G requires; it is not a UDIMM or SODIMM so the keying and height match the server board slots exactly.

What is the correct installation order for the two 128 GB modules on the H13SST-G, and which step do builders most often miss?

Install the first module in the slot designated DIMM A1 (or CPU1 Channel 0) and the second in the matching slot for the second channel; the step most often missed is consulting the motherboard manual for the exact population sequence before seating the modules.

If a module fails years from now, what replacement process applies to this 256 GB kit?

The kit is covered by a lifetime replacement warranty with free US-based technical support; contact the supplier to arrange a swap for the defective 128 GB RDIMM.

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