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Four green 288-pin DDR5 RDIMM modules in static bags

NEMIX RAM

NEMIX RAM 512GB 4x128GB DDR5 6400 CL52 1.1V ECC Registered RDIMM Supermicro H13SST-G

SKU CH-QHRN-RCPRT

512 GB DDR5 server kit with four 128 GB registered ECC modules at 6400 MT/s, CL52, 1.1 V, validated for Supermicro H13SST-G

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 512 GB total capacity across four 128 GB modules for maximum server density
  • DDR5 6400 speed with CL52 latency at 1.1 V for efficient high-throughput operation
  • ECC and registered design corrects single-bit errors and offloads the memory controller
  • 288-pin RDIMM form factor verified for Supermicro H13SST-G motherboard compatibility
  • Built with major OEM Samsung, Micron or Hynix chips for enterprise-grade reliability

Exact-match DDR5 server kit

This 512 GB kit contains four 128 GB DDR5 6400 RDIMMs built to the 288-pin registered ECC specification. It targets administrators upgrading a Supermicro H13SST-G motherboard where every slot must be populated with matched rank, voltage and timing.

DDR5 registered ECC limits

Registered buffering lets the memory controller drive all four slots at full 6400 MT/s without signal degradation, while ECC corrects single-bit errors on the fly. The 1.1 V operating voltage and CL52 latency are fixed by the DDR5 standard for this module class, so the board cannot run them at lower latency or higher voltage.

2Rx4 rank decides fitment

Each module uses a 2Rx4 organization that the H13SST-G memory controller expects for full-capacity recognition. A different rank structure would prevent the system from seeing the full 512 GB or from booting at the rated 6400 speed.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $16,362.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $31.96 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-724K4
Total capacity512 GB (4 × 128 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items512 GB 4 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Should I choose the 512GB kit with four 128GB modules or a different capacity for my Supermicro H13SST-G?

The 512GB kit uses four 128GB 2Rx4 RDIMMs that match the board's population rules for full-capacity operation at DDR5-6400.

What does the DDR5-6400 speed rating deliver once installed in the server?

The modules run at 6400 MT/s with CL52 latency at 1.1V, giving the memory controller its rated throughput when all slots are populated.

How does the 288-pin RDIMM interface and registered design affect real-world limits?

Registered buffering offloads the controller so every slot runs at full 6400 speed, while ECC corrects single-bit errors on the fly.

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