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Eight green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM DDR5 ECC RDIMM 384GB 8x48GB 4800 CL40 1.1V 2Rx8 Supermicro H13DSG-O-CPU memory upgrade

SKU CH-JTW3-7MD6D

384 GB DDR5 4800 ECC registered RDIMM kit built for the Supermicro H13DSG-O-CPU motherboard

  • Total capacity384 GB (8 × 48 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 384GB 8X48GB

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  • 384 GB total capacity for memory-intensive server workloads with eight 48 GB modules
  • DDR5 4800 MT/s speed transfers data at the board's rated frequency
  • Registered ECC design offloads the controller and corrects single-bit errors automatically
  • 1 V operating voltage matches the platform's memory specification exactly
  • 288-pin RDIMM form factor fits the Supermicro H13DSG-O-CPU motherboard's DIMM slots

Exact-match DDR5 ECC RDIMM kit

This 384 GB kit contains eight 48 GB DDR5-4800 Registered ECC modules built to the 288-pin RDIMM form factor. It is specified for the Supermicro H13DSG-O-CPU motherboard and matches the board's required rank, voltage and timing so the memory controller recognises the full capacity at rated speed.

Registered architecture and low voltage

Registered buffering offloads the memory controller, allowing all slots to run fully populated at 1.1 V while ECC corrects single-bit errors on the fly. The modules operate at CL40 latency without a heat spreader, relying on the server chassis airflow for thermal management in normal operation.

Sustained-load stability

Under continuous workloads the registered design keeps each DIMM stable at the full 384 GB configuration, preventing the signal degradation that can occur with unbuffered modules in dense populations. ECC protection remains active throughout extended runs, stopping silent data corruption before it reaches production workloads.

How it compares

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

Price $8,935.99
Pricier than about 86% of the 21,161 comparable items (median $397.99).
Total capacity 384 GB (8 × 48 GB)
Higher than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $23.27 per GB
Pricier than about 68% 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 numberMR38400-4828K8
Total capacity384 GB (8 × 48 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 8 × 48 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 do I install the 8x48GB DDR5 RDIMM kit into the Supermicro H13DSG-O-CPU, and which step do people get wrong?

Power down the server, open the chassis, and insert each 288-pin module into the slots listed in the motherboard manual following the exact population order; the step most often missed is seating both latches until they click, otherwise the registered buffer stays inactive and the system will not POST.

What maintenance or replacement will the 384GB DDR5 ECC RDIMM kit need later?

No routine maintenance is required; the modules have no heat spreaders and run at 1.10V, so only a failed DIMM would need replacement, which is covered by the lifetime replacement warranty.

What limit appears first when the 8x48GB DDR5-4800 CL40 kit runs sustained workloads?

The memory controller’s maximum supported capacity and ranked population rules for the H13DSG-O-CPU are reached before any thermal or voltage ceiling, so full 384GB operation depends on the board’s qualified vendor list and BIOS settings.

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