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Two green 288-pin DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM DDR5 4800 128GB 2x64GB ECC Registered RDIMM Supermicro H14DST-FL memory upgrade

SKU CH-TDS5-TFSFK

128GB DDR5-4800 ECC Registered RDIMM kit in two 64GB modules at 1.1V CL40, validated for the Supermicro H14DST-FL motherboard

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 2X64GB

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  • 128 GB total capacity from two 64 GB modules
  • DDR5-4800 speed with CL40 latency at 1.1 V
  • Registered ECC design prevents data corruption under load
  • 2Rx4 dual-rank layout matches controller expectations
  • 288-pin RDIMM form factor fits Supermicro H14DST-FL

Exact-Match Server Upgrade

This NEMIX RAM kit delivers 128GB of DDR5 memory as two 64GB Registered ECC RDIMMs built for the Supermicro H14DST-FL motherboard. The modules run at DDR5 4800 (PC5-38400) with CL40 timing at 1.1V, matching the board's memory controller requirements for full-capacity recognition and rated-speed operation.

Thermals and Power Profile

Operating at 1.1V, the Registered RDIMMs draw minimal power while the buffered architecture reduces electrical load on the memory controller when all slots are populated. Without heat spreaders, airflow across the bare PCB handles thermal dissipation in standard server chassis environments designed for high-density memory configurations.

ECC and Registration Benefits

The 2Rx4 Registered ECC design corrects single-bit errors on the fly to prevent silent data corruption and unplanned reboots in production workloads. Registered buffering offloads the memory controller so every populated slot runs at full capacity, while the lifetime replacement warranty and US-based technical support provide long-term deployment confidence.

How it compares

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

Price $3,246.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $25.37 per GB
Pricier than about 70% 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 numberMR38400-924K2
Total capacity128 GB (2 × 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 items128 GB 2 × 64 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 the 2Rx4 DDR5 4800 RDIMM kit in the Supermicro H14DST-FL and which slot order is the common mistake?

Power down, open the chassis, and follow the motherboard manual’s population sequence — typically fill the farthest slot from the CPU on each channel first — because skipping that order leaves the 128 GB kit unrecognised or running at reduced speed.

What maintenance or replacement will the 1.10 V registered ECC modules need over their service life?

No scheduled maintenance is required; the modules have no heat spreader or moving parts, so only a failed DIMM would need replacement under the lifetime warranty.

What limit appears first when the 128 GB kit runs sustained workloads on the H14DST-FL?

The memory controller’s maximum supported capacity and population rules cap usable memory before thermal or voltage limits become a factor.

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