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Twelve green DDR5 RDIMM modules in a row, each with black chips and gold contacts

NEMIX RAM

NEMIX RAM DDR5 4800 768GB 12x64GB ECC RDIMM CL40 1.1V 2Rx4 Supermicro H14DSG-OD memory upgrade

SKU CH-NRTN-ZJ0X3

768 GB DDR5 server memory kit with twelve 64 GB registered ECC modules at 4800 MHz, CL40, 1.1 V, validated for the Supermicro H14DSG-OD motherboard

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 768GB 12X64GB

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  • 768 GB total capacity across twelve 64 GB modules for maximum server density
  • DDR5 4800 speed with CL40 latency at 1.1 V delivers rated performance
  • Registered ECC architecture offloads the memory controller and corrects single-bit errors automatically
  • 288-pin RDIMM form factor matches the Supermicro H14DSG-OD motherboard requirements exactly
  • Built with major OEM Samsung, Micron or Hynix chips for enterprise-grade reliability

768GB DDR5-4800 ECC RDIMM kit

This 12-module kit delivers 768GB of DDR5 4800 (PC5-38400) registered ECC memory. Each 64GB module uses a 2Rx4 organisation, runs at 1.10V and is rated CL40. It is built as an exact-match upgrade for the Supermicro H14DSG-OD motherboard.

DDR5 registered DIMM constraints

The 288-pin RDIMM form factor is required by this platform; UDIMM or SODIMM modules will not fit or function. Registered buffering offloads the memory controller so every slot can run fully populated at rated speed, while ECC corrects single-bit errors on the fly. The board's memory-population rules dictate supported capacities and installation order.

Verify board manual before ordering

Check the Supermicro H14DSG-OD manual for approved DIMM population sequences, maximum supported capacity per channel and any BIOS version requirements. Only install this kit if the manual confirms 12 x 64GB 2Rx4 registered ECC modules at DDR5 4800 are supported.

How it compares

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

Price $18,982.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (12 × 64 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $24.72 per GB
Pricier than about 69% 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 numberMR38400-924K12
Total capacity768 GB (12 × 64 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items768 GB 12 × 64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Should I choose the 12-module 768GB kit or a smaller capacity for my Supermicro H14DSG-OD?

The 12 x 64GB kit fills every slot on the H14DSG-OD for maximum supported capacity. Select a smaller kit only if your workload does not need the full 768GB or if your CPU SKU limits per-channel population.

What does the DDR5 4800 rating deliver once installed in the server?

The modules run at 4800 MT/s with CL40 latency at 1.1V, giving the memory controller the exact speed and timing it expects for full-throughput operation across all populated channels.

How does the 288-pin RDIMM interface affect real-world bandwidth?

The registered 288-pin DDR5 RDIMM interface buffers address and command signals, allowing all 12 slots to operate at the rated PC5-38400 data rate without signal-integrity loss.

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