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Sixteen green DDR5 RDIMM modules in anti-static packaging

NEMIX RAM

NEMIX RAM DDR5 ECC RDIMM 512GB 16x32GB 4800MHz CL40 1.1V 2Rx8 288-pin Supermicro H14DSG-OD memory upgrade

SKU CH-71A2-GDQRE

512GB DDR5 ECC registered server memory kit of 16×32GB modules at 4800MHz CL40 1.1V 2Rx8, validated for Supermicro H14DSG-OD motherboards

  • Total capacity512 GB (16 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 512GB 16X32GB

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  • 512 GB total capacity from 16 matched 32 GB modules
  • DDR5 4800 MHz speed with CL40 latency for rated throughput
  • Registered ECC design corrects single-bit errors and stabilises full population
  • 1 V operation at 2Rx8 rank matches controller expectations
  • 288-pin RDIMM form factor verified for Supermicro H14DSG-OD

Exact-match server upgrade

This 512 GB kit delivers 16 DDR5 ECC registered RDIMM modules at 32 GB each. They run at 4800 MHz (PC5-38400) with CL40 timing and 1.1 V. The 2Rx8 rank structure matches the Supermicro H14DSG-OD memory controller requirements.

Registered architecture with ECC

Registered buffering offloads the controller so every slot operates at full population. ECC corrects single-bit errors on the fly to prevent silent data corruption and unplanned reboots. The kit contains only the 288-pin RDIMM modules.

For fully populated H14DSG-OD builds

Suits administrators populating all 16 DIMM slots on a verified Supermicro H14DSG-OD board. Not for systems that require UDIMM or SODIMM form factors, non-ECC memory, or lower total capacities. Consult the motherboard manual for population order before installation.

How it compares

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

Price $14,701.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (16 × 32 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $28.71 per GB
Pricier than about 81% 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 numberMR38400-328K16
Total capacity512 GB (16 × 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 items512 GB 16 × 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 16 modules need any firmware updates or reconfiguration after installation?

No firmware updates are required; the kit is spec-matched to the Supermicro H14DSG-OD so the memory controller recognises the 512 GB capacity and runs at DDR5-4800 CL40 immediately.

What limits sustained throughput first — the CL40 latency or the 1.1 V operating voltage?

The CL40 CAS latency at DDR5-4800 sets the timing ceiling; the 1.10 V supply is the standard JEDEC voltage for this speed grade and does not throttle bandwidth.

How much heat do the 16 bare RDIMMs generate when the server runs all day?

Without heat spreaders the modules rely on chassis airflow; at 1.1 V and registered ECC operation they stay within normal DDR5 thermals provided the H14DSG-OD's fan profile is maintained.

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