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Two green DDR5 RDIMM modules side by side, no heat spreaders, gold contacts visible

NEMIX RAM

NEMIX RAM 128GB 2x64GB DDR5 4800 ECC RDIMM memory upgrade for Supermicro H14DSG-O-CPU

SKU CH-TFMY-CH367

A 128 GB DDR5 kit of two 64 GB ECC Registered RDIMMs running at 4800 MHz CL40 1.1 V for Supermicro H14DSG-O-CPU servers

  • 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

Show 30 more
  • 128 GB kit installs as two 64 GB modules for full-capacity population
  • DDR5-4800 CL40 at 1.1 V matches the controller's rated speed and timing
  • Registered ECC RDIMM offloads the memory controller and corrects single-bit errors
  • 288-pin 2Rx4 form factor fits the Supermicro H14DSG-O-CPU motherboard exactly
  • Lifetime replacement warranty with US-based technical support included

128GB DDR5-4800 ECC RDIMM Kit

This 128GB kit contains two 64GB DDR5 Registered DIMMs rated at 4800MHz with CL40 latency and 1.1V operation. It is built for the Supermicro H14DSG-O-CPU motherboard where the memory controller expects 2Rx4 registered modules with ECC.

Suited for servers needing registered ECC memory

This kit fits administrators upgrading a Supermicro H14DSG-O-CPU platform that requires 288-pin RDIMMs. It is not for systems that accept only unbuffered UDIMMs or SODIMMs, nor for builds that cannot use registered ECC modules.

2Rx4 Registered ECC at 1.1V

The dual-rank 2Rx4 registered design with on-die ECC at 1.1V is the specific electrical signature the H14DSG-O-CPU memory controller validates during training. If your board's qualified-vendor list calls for a different rank structure or voltage, the modules will not initialise at rated speed.

How it compares

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

Price $3,371.99
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 $26.34 per GB
Pricier than about 73% 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

Will the 288-pin RDIMM modules need any firmware updates or re-seating after extended server uptime?

No firmware updates or scheduled re-seating are required; the registered ECC design is validated for continuous operation at the rated 1.10 V and CL40 timings.

What electrical or thermal limit appears first when the kit runs at DDR5 4800 continuously?

The memory controller's 1.10 V rail and CL40 timing budget set the boundary; sustained loads stay within the JEDEC DDR5 4800 specification without throttling.

How much heat and power does the 2Rx4 registered kit generate under 24/7 load?

Each 64 GB module draws 1.10 V at standard DDR5 4800 current; with no heat spreaders, airflow across the 288-pin slots keeps temperatures in the normal server range.

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