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Twelve green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM MR38400-328K12 384GB 12x32GB DDR5 4800 CL40 ECC RDIMM Supermicro H14DSG-OD

SKU CH-W1KY-AC0MX

A 384 GB DDR5 ECC registered server memory kit of twelve 32 GB modules at 4800 MT/s CL40, validated for the Supermicro H14DSG-OD motherboard

  • Total capacity384 GB (12 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 384GB 12X32GB

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  • 384GB total capacity from twelve 32GB modules
  • DDR5 4800 speed with CL40 latency at 1.1V
  • Registered ECC design prevents data corruption under load
  • 288-pin RDIMM form factor matches Supermicro H14DSG-OD
  • 2Rx8 dual-rank organisation enables full population stability

384GB DDR5 ECC RDIMM kit for Supermicro H14DSG-OD

This 12-module kit delivers 384GB of DDR5 4800 registered ECC memory in matched 32GB 2Rx8 DIMMs. It is built for the Supermicro H14DSG-OD motherboard where full-slot population and registered architecture are required for stable operation.

Registered ECC architecture with 2Rx8 organisation

The registered buffer reduces electrical load on the memory controller so all twelve slots can run at the rated 4800 MT/s without signal degradation. On-die ECC corrects single-bit errors in real time, preventing silent data corruption in production workloads.

DDR5 4800 CL40 at 1.10V 288-pin RDIMM

The modules operate at the standard DDR5-4800 (PC5-38400) speed with CL40 latency at 1.10 volts. This exact voltage, timing and pin-out combination is what the H14DSG-OD memory controller expects for full-capacity recognition. Builders needing UDIMM, SODIMM or a different voltage must choose another kit.

How it compares

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

Price $9,880.99
Pricier than about 87% of the 21,161 comparable items (median $397.99).
Total capacity 384 GB (12 × 32 GB)
Higher than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $25.73 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 numberMR38400-328K12
Total capacity384 GB (12 × 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 items384 GB 12 × 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

Will the 12-module 384GB kit need any firmware updates or battery-backed spares over its service life?

DDR5 RDIMMs have no onboard battery or field-updatable firmware; the only maintenance is reseating modules if the server reports correctable ECC errors after years of vibration.

What caps sustained throughput first — the CL40 latency or the 4800 MT/s data rate?

The 4800 MT/s transfer ceiling is reached before CL40 latency becomes the bottleneck, so sustained bandwidth tops out at the rated PC5-38400 line speed.

How much extra heat and power do the twelve 1.10 V registered DIMMs draw when the server runs all day?

Each 32 GB 2Rx8 module operates at 1.10 V without a heat spreader; total kit power scales linearly with all twelve slots populated, and registered buffering keeps per-DIMM thermals within standard server airflow limits.

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