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Twelve green DDR5 RDIMM modules in a row, no heat spreaders, gold contacts visible

NEMIX RAM

NEMIX RAM 384GB 12x32GB DDR5 6400 CL52 1.1V 2Rx8 ECC RDIMM Supermicro H14DSG-OM memory upgrade

SKU CH-KXXY-9J1TX

384 GB kit of twelve 32 GB DDR5 6400 CL52 1.1 V ECC registered RDIMMs validated for Supermicro H14DSG-OM

  • Total capacity384 GB (12 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 384 GB total capacity from twelve 32 GB modules
  • DDR5-6400 speed with CL52 latency at 1.1 V
  • Registered ECC design corrects single-bit errors on the fly
  • 2Rx8 dual-rank organisation fully populates every slot
  • 288-pin RDIMM form factor matches Supermicro H14DSG-OM requirements

Server-grade DDR5 upgrade kit

This 384 GB kit contains twelve 32 GB DDR5-6400 RDIMM modules built for the Supermicro H14DSG-OM motherboard. Each stick runs at 1.1 V with CL52 latency and 2Rx8 registered ECC architecture. The registered design buffers address and command signals so the memory controller stays stable when every slot is populated. ECC corrects single-bit errors on the fly to protect data integrity in production workloads.

Slot-specific installation

The board requires 288-pin RDIMMs in a defined population order; UDIMMs or SODIMMs will not fit or function. Follow the motherboard manual for the exact slot sequence because mis-ordered modules can prevent boot or limit capacity. No heat spreaders are present, so airflow through the chassis must reach the bare PCB. Handle modules by the edges and seat each one firmly until the retention clips click.

Full-population capacity ceiling

Twelve modules fill every DIMM slot on the H14DSG-OM, delivering the maximum 384 GB this platform supports with 32 GB densities. Workloads such as large in-memory databases, virtualization hosts or HPC datasets fit comfortably within this headroom. Applications that demand more than 384 GB or higher per-module density will exceed what this board and kit can provide.

How it compares

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

Price $13,601.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 384 GB (12 × 32 GB)
Higher than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $35.42 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 numberMR51200-328K12
Total capacity384 GB (12 × 32 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 rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items384 GB 12 × 32 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How can I verify the kit is running at DDR5-6400 CL52 1.1V after installing it in the Supermicro H14DSG-OM?

Enter the BIOS and confirm the memory speed shows 6400 MT/s, CAS latency 52, and voltage 1.10V across all 12 slots; run a full memtest pass to ensure ECC is active and no errors appear.

What comes in the box and do I need any extra parts for the Supermicro H14DSG-OM?

The kit includes twelve 32 GB DDR5 288-pin RDIMM modules for a total of 384 GB; no additional memory parts are required for a full population on the H14DSG-OM.

Which capacity version should I choose for the Supermicro H14DSG-OM if I want the maximum supported kit?

This 384 GB kit (12 × 32 GB, 2Rx8, CL52, 1.10V) is the exact-match upgrade validated for the H14DSG-OM; choose it when the board's manual lists 384 GB as the maximum supported capacity.

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