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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM MR38400-618K8 128GB 8x16GB DDR5 4800 CL40 ECC RDIMM Supermicro H14DSH memory upgrade

SKU CH-K43S-EN2BQ

Eight 16 GB DDR5 4800 CL40 ECC registered RDIMMs totalling 128 GB, validated for the Supermicro H14DSH motherboard

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 8X16GB

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  • 128 GB capacity from eight 16 GB modules
  • DDR5 4800 speed with CL40 latency
  • Registered ECC design corrects single-bit errors
  • 1 V operation matches server specifications
  • Verified fit for Supermicro H14DSH motherboard

Supermicro H14DSH memory upgrade

This 128GB kit contains eight 16GB DDR5 RDIMMs built for the Supermicro H14DSH motherboard. Each module runs at 4800 MT/s with CL40 latency at 1.10V. Registered ECC design ensures data integrity for server workloads.

Registered ECC RDIMM fitment

The 288-pin Registered form factor matches the board's required DIMM type, not UDIMM or SODIMM. Buffered architecture offloads the memory controller so all slots can be populated. ECC corrects single-bit errors before they affect production systems.

128GB capacity at DDR5-4800

Eight single-rank 1Rx8 modules deliver full rated speed when populated per the motherboard manual. Headroom covers virtualization, database, and compute tasks needing large memory footprints. Builds requiring more than 128GB or different speeds need a different kit.

How it compares

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

Price $3,757.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $29.36 per GB
Pricier than about 83% 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 numberMR38400-618K8
Total capacity128 GB (8 × 16 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 rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB 8 × 16 GB DDR5 4800 MHz PC5-38400 1Rx8 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

How much memory bandwidth does the DDR5-4800 kit deliver across all eight channels?

Each module runs at 4800 MT/s (PC5-38400), so eight 1Rx8 RDIMMs give the full eight-channel throughput the H14DSH memory controller is designed for.

What is the power draw and thermal profile when the kit runs continuously at 1.1 V?

Operating at 1.1 V with no heat spreader, the registered ECC modules rely on server chassis airflow; power scales with capacity and rank activity, staying within standard DDR5 RDIMM limits.

Which motherboard features must be present for this 128 GB kit to operate?

The board needs eight 288-pin DDR5 RDIMM slots, registered ECC support, and a memory controller that accepts 1Rx8 modules at CL40 — exactly what the Supermicro H14DSH provides.

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