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Green circuit board with black memory chips, no heat spreader, 288 gold contacts, DDR5 RDIMM form factor

NEMIX RAM

NEMIX RAM DDR5 64GB 4800 CL40 1.1V 2Rx4 ECC RDIMM Supermicro H14DST-FL memory upgrade

SKU CH-D59S-80PC9

64 GB DDR5 4800 CL40 1.1 V 2Rx4 ECC RDIMM built for Supermicro H14DST-FL servers

  • Total capacity64 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 64GB

Show 30 more
  • Exact 64 GB DDR5-4800 CL40 1.10 V RDIMM spec match
  • Verified fit for Supermicro H14DST-FL 288-pin RDIMM slots
  • Registered ECC buffers controller and corrects single-bit errors
  • 2Rx4 dual-rank organisation supports full-capacity population
  • Lifetime replacement warranty with US-based technical support

Exact DDR5 4800 ECC RDIMM for Supermicro H14DST-FL

This 64 GB registered ECC module matches the DDR5 4800 PC5-38400 specification the Supermicro H14DST-FL memory controller expects. The 2Rx4 rank layout, 1.10 V operating voltage and CL40 timing are factory-matched so the server recognises the full capacity at rated speed without manual tuning. It is intended for administrators upgrading or populating that specific motherboard with validated server memory.

Low-voltage registered design limits heat

Operating at 1.10 V, the DDR5 RDIMM reduces electrical load on the memory controller compared with higher-voltage alternatives. The registered buffer isolates each 288-pin module from the bus, allowing every slot to run fully populated at 4800 MT/s without signal degradation. No heat spreader is fitted, relying on standard server airflow to maintain thermal limits during continuous operation.

Chip-level ECC and registered buffering protect

On-die ECC corrects single-bit errors in real time, preventing silent data corruption that can crash workloads or corrupt databases. The registered architecture offloads address and command signals from the CPU memory controller, enabling stable operation when all DIMM slots are filled. Buyers needing unbuffered UDIMMs, SODIMMs or non-ECC modules for workstations or consumer boards cannot use this kit.

How it compares

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

Price $1,758.99
Pricier than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $27.48 per GB
Pricier than about 77% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-924K1
Total capacity64 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 items64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

How do I install this 64GB DDR5 4800 RDIMM in the Supermicro H14DST-FL and what slot order should I follow?

Power down the server, open the chassis, align the 288-pin key with the DDR5 slot, press firmly until the ejectors click, then populate DIMM slots in the exact sequence listed in the motherboard manual so the 2Rx4 registered modules initialise at full 64GB capacity.

What maintenance or replacement will this ECC registered module need over its service life?

The module has no heat spreader and no moving parts, so routine maintenance is limited to keeping server airflow clean; if a correctable error count rises or a hard failure occurs, the lifetime replacement warranty covers a direct swap of the 64GB DDR5 4800 kit.

What limit appears first when this 1.1V DDR5 RDIMM runs sustained workloads at 4800 MT/s?

The registered buffer and on-die ECC keep signal integrity stable, so the first ceiling is the motherboard's maximum supported capacity per channel and total DIMM count rather than a thermal or voltage throttle on the 1.10V modules themselves.

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