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Twelve green DDR5 RDIMM modules in a row, bare chips, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 6400 CL52 384GB 12x32GB ECC RDIMM Supermicro H14DSG-O-CPU

SKU CH-PF3J-XKERH

384 GB DDR5 6400 ECC RDIMM kit with twelve 32 GB registered modules at CL52 and 1.1 V, validated for the Supermicro H14DSG-O-CPU motherboard

  • 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 capacity in a 12-module kit for maximum server density
  • DDR5-6400 CL52 speed runs at rated frequency on the Supermicro H14DSG-O-CPU
  • Registered ECC architecture corrects single-bit errors and stabilises fully populated slots
  • 10 V operation matches the motherboard's memory-controller specification exactly
  • 288-pin 2Rx8 RDIMM form factor fits the board's required slot layout

384GB DDR5 ECC RDIMM kit for Supermicro H14DSG-O-CPU

This 384GB kit contains twelve 32GB DDR5 6400 RDIMMs built to the exact rank, voltage, and timing the Supermicro H14DSG-O-CPU memory controller expects. Registered ECC architecture and 1.1V operation let every slot run fully populated at rated speed. It is designed for servers that require registered memory and will not work in systems that only accept unbuffered UDIMMs or SODIMMs.

Sustained-load stability with registered ECC

Registered buffering offloads the memory controller so all twelve modules operate at DDR5 6400 continuously without signal degradation. ECC detects and corrects single-bit errors on the fly, preventing silent data corruption during long compute runs. CL52 latency and 1.1V power draw remain consistent across the full 384GB capacity under heavy multi-threaded workloads.

Twelve-module 288-pin RDIMM layout

The kit uses a 12 x 32GB 288-pin RDIMM form factor with 2Rx8 organization and major OEM DRAM chips. No heat spreaders are fitted, so airflow in dense server chassis is unrestricted. Population order must follow the Supermicro H14DSG-O-CPU manual to enable full 384GB recognition and correct channel interleaving.

How it compares

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

Price $15,686.99
Pricier than about 91% 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 $40.85 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 much power does each 32GB DDR5 6400 RDIMM draw at the rated 1.1V voltage?

Each module operates at 1.1V; total kit power depends on server load and memory-controller efficiency.

What motherboard and memory slots are required for this 12-module 288-pin RDIMM kit?

The Supermicro H14DSG-O-CPU motherboard with twelve DDR5 RDIMM slots populated per the board's population rules.

Can I mix these 2Rx8 CL52 RDIMMs with other DDR5 RDIMMs of different rank or latency in the same server?

Mixing ranks or timings is not recommended; the board expects identical 2Rx8 CL52 modules in every populated slot for stable operation.

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