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Twelve green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 1.5TB 12x128GB DDR5 4800 CL40 1.1V 2Rx4 RDIMM Supermicro H14DSG-OD memory upgrade

SKU CH-AH16-3JHV4

A 1.5 TB kit of twelve 128 GB DDR5 4800 RDIMM modules with ECC and registered buffering for the Supermicro H14DSG-OD motherboard

  • Total capacity1.5 TB (12 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 1.5TB 12X128GB

Show 30 more
  • 5TB capacity across 12 modules of 128GB each for maximum server density
  • DDR5 4800 speed with CL40 latency runs at rated frequency on the Supermicro H14DSG-OD
  • Registered ECC architecture with 2Rx4 organisation offloads the memory controller and corrects single-bit errors
  • 1V operating voltage matches the board's memory-controller specification exactly
  • 288-pin RDIMM form factor fits the motherboard's required slot type and population rules

1.5 TB DDR5 RDIMM kit for Supermicro H14DSG-OD

This 12-module kit delivers 1.5 TB of DDR5 4800 registered ECC memory built to the exact rank, voltage and timing the Supermicro H14DSG-OD memory controller expects. It targets operators scaling database, virtualization or HPC workloads on this specific platform where full-capacity stability is mandatory.

DDR5 4800 registered ECC limits

Registered DIMMs buffer the command bus so all 12 slots can run at the rated 4800 MT/s without signal degradation, while ECC corrects single-bit errors before they corrupt data. The 1.1 V operating voltage and CL40 latency are fixed by the JEDEC DDR5-4800 standard; higher speeds or lower latencies require motherboard and CPU support not guaranteed on this board.

Upgrading from partial or mixed populations

Replacing a smaller or mixed-capacity population with this matched 12×128 GB kit eliminates population-rule conflicts and enables the maximum supported capacity in a single validated configuration. The jump is worthwhile when the workload demands the full 1.5 TB address space and the platform firmware recognises the 2Rx4 organisation across every channel.

How it compares

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

Price $47,364.99
Pricier than about 96% of the 21,161 comparable items (median $397.99).
Total capacity 1.5 TB (12 × 128 GB)
Higher than about 97% of the 20,941 comparable items (median 32 GB).
Price per GB $31.58 per GB
Pricier than about 90% 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 numberMR38400-724K12
Total capacity1.5 TB (12 × 128 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 items1.5 TB 12 × 128 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Should I choose the 12x128GB kit or a different capacity for my Supermicro H14DSG-OD?

The 1.5TB kit with 12x128GB DDR5 4800 CL40 2Rx4 RDIMM modules matches the board's population rules and runs at rated speed when fully populated.

What does DDR5 4800 PC5-38400 mean once installed in the server?

The modules operate at 4800 MT/s with CL40 latency at 1.10V, delivering the bandwidth and timing the memory controller expects for stable full-capacity operation.

How does the 288-pin RDIMM interface and registered ECC design cap performance in practice?

The registered architecture buffers address and command signals so all 12 slots run at DDR5 4800 with ECC error correction, preventing signal degradation at full population.

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