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Four green circuit boards with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 4800 128GB (4x32GB) ECC RDIMM CL40 1.1V 2Rx8 Supermicro H14DSG-OD memory upgrade

SKU CH-2XA5-PA83R

A 128GB DDR5 ECC RDIMM kit with four 32GB modules running at 4800MHz CL40 1.1V, registered for full-capacity stability on Supermicro H14DSG-OD

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 4X32GB

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  • 128 GB total capacity from four 32 GB modules
  • DDR5 4800 MT/s speed with CL40 latency
  • Registered ECC architecture corrects single-bit errors automatically
  • 1 V operating voltage matches server memory controller spec
  • Verified fit for Supermicro H14DSG-OD motherboard 288-pin RDIMM slots

Exact DDR5 4800 ECC RDIMM kit for Supermicro

This 128 GB kit contains four 32 GB registered DDR5 modules rated at 4800 MT/s with CL40 latency and 1.1 V operation. It is built for the Supermicro H14DSG-OD motherboard where registered ECC memory is required for full-capacity stability.

Installing registered ECC RDIMMs

Modules are 288-pin RDIMMs that seat only in DDR5 RDIMM slots; they will not fit UDIMM or SODIMM sockets. Follow the motherboard manual population sequence exactly — wrong slot order prevents the system from recognising the full 128 GB.

Before ordering verify your platform

Confirm the board is a Supermicro H14DSG-OD and that its firmware supports 128 GB of registered ECC DDR5 at 4800 MT/s. Check the manual for approved DIMM population rules and any BIOS version requirements before purchase.

How it compares

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

Price $3,833.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $29.95 per GB
Pricier than about 85% 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 numberMR38400-328K4
Total capacity128 GB (4 × 32 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 rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB 4 × 32 GB DDR5 4800 MHz PC5-38400 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How can I confirm the kit is running at DDR5 4800 with CL40 after installation?

Enter the BIOS or use a tool such as dmidecode to verify each module reports 4800 MT/s, CL40 timings, 1.10 V and 2Rx8 registered ECC operation.

What does the package contain and are any extra parts required?

The box holds four 32 GB DDR5 288-pin RDIMMs for a total of 128 GB; no additional components are needed for the Supermicro H14DSG-OD.

Which capacity kit should I choose for the H14DSG-OD?

Select the 128 GB (4 x 32 GB) kit to match the board's validated population rules and achieve full-channel bandwidth.

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