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Two green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 6400 CL52 1.1V 2Rx8 ECC RDIMM memory upgrade

SKU CH-PQWN-FR43C

64 GB dual-rank DDR5-6400 ECC RDIMM kit with CL52 timing and 1.1 V operation, validated for Supermicro H14DST-F motherboards

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 64 GB total capacity from two 32 GB modules for maximum server density
  • DDR5 6400 speed with CL52 latency matches the controller's rated timing
  • 1 V registered ECC design reduces power draw and corrects single-bit errors
  • 288-pin RDIMM form factor fits the Supermicro H14DST-F memory slots exactly
  • Lifetime replacement warranty with US-based technical support included

Server Memory Kit for Supermicro H14DST-F

This 64GB kit contains two 32GB DDR5 RDIMMs built to the exact rank, voltage and timing the Supermicro H14DST-F memory controller expects. Registered ECC architecture lets every slot run fully populated at rated speed while correcting single-bit errors before they reach production workloads. It is not for systems that require unbuffered UDIMMs or SODIMM form factors.

DDR5 6400 Registered Interface Limits

The modules operate at DDR5 6400 (PC5-51200) with CL52 latency at 1.10V using 288-pin RDIMM connectors. Registered buffering offloads the memory controller so full-capacity population remains stable, but the board's own population rules still dictate which slots must be filled first. Maximum capacity and supported ranks are defined by the motherboard manual, not by the modules alone.

Installation and Common Pitfalls

Align the 288-pin key notch with the slot, press evenly until the latches click, then verify population order in the H14DST-F manual before powering on. Mismatched rank configuration or incorrect slot sequence are the usual reasons the system fails to recognise the full 64GB at 6400MHz. No heat spreaders are fitted, so ensure case airflow meets the server's thermal design.

How it compares

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

Price $2,228.99
Pricier than about 70% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $34.83 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 numberMR51200-328K2
Total capacity64 GB (2 × 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 items64 GB 2 × 32 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Should I choose the 64GB kit or would a 32GB module be enough for my Supermicro H14DST-F?

The 64GB kit provides two 32GB modules, filling two slots and giving the maximum dual-channel capacity this board supports with registered DIMMs.

Will the DDR5 6400 CL52 rating actually run at 6400 MT/s on the H14DST-F?

Yes, the kit is spec-matched to the board's memory controller so it initialises at the rated 6400 MT/s with CL52 timings at 1.1V.

Does the 288-pin RDIMM interface limit how many modules I can install?

The registered architecture offloads the memory controller, allowing every supported slot to run fully populated at the full 6400 MT/s speed.

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