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Green circuit board DDR5 RDIMM module with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 48GB DDR5 6400 CL52 2Rx8 1.1V ECC RDIMM Supermicro H14SST-GE

SKU CH-DG39-GDRA7

A 48 GB DDR5 6400 RDIMM with ECC and registered buffering, built for the Supermicro H14SST-GE motherboard

  • Total capacity48 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Exact DDR5-6400 spec match for full-speed operation
  • 48 GB registered ECC RDIMM protects data integrity
  • 2Rx8 1.10 V design enables full-slot population
  • 288-pin RDIMM form factor fits Supermicro H14SST-GE
  • Lifetime replacement warranty with US-based technical support

Targeted Server Upgrade

This 48GB DDR5 module is built for the Supermicro H14SST-GE motherboard. It delivers registered ECC memory that the board's memory controller recognises at full capacity and rated speed. The 288-pin RDIMM form factor matches the slot requirement exactly. System administrators expanding memory in compatible Supermicro platforms will find it fits the validated configuration.

Replacing Registered ECC Modules

The kit replaces older registered ECC DIMMs that cannot reach DDR5 6400 (PC5-51200) at 1.1V with CL52 timing. The jump is worth it when the motherboard supports this data rate and the 2Rx8 rank structure, allowing full population without downclocking. It is not for systems that require unbuffered UDIMMs, SODIMMs, or a different voltage and rank layout.

Build Integration

The module installs directly into the 288-pin RDIMM slots on the H14SST-GE following the board's population rules. Registered architecture offloads the memory controller so every slot can run fully populated at rated speed. ECC corrects single-bit errors on the fly to prevent silent data corruption. No heat spreader is included, so airflow in the server chassis must be adequate for bare DRAM. Consult the motherboard manual for supported capacities and installation order before purchase.

How it compares

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

Price $1,148.99
Pricier than about 62% of the 21,161 comparable items (median $397.99).
Total capacity 48 GB
Higher than about 55% of the 20,941 comparable items (median 32 GB).
Price per GB $23.94 per GB
Pricier than about 69% 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 numberMR51200-4828K1
Total capacity48 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items48 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will this 288-pin DDR5 RDIMM fit the Supermicro H14SST-GE motherboard slots?

Yes, the module uses the 288-pin DDR5 RDIMM form factor that the H14SST-GE requires; it is not a UDIMM or SODIMM and matches the board's registered-memory specification.

What is the correct installation step for this 2Rx8 registered ECC module on the H14SST-GE?

Consult the motherboard manual for the approved DIMM population order and install the registered RDIMM in the designated slot sequence; skipping the population rules can prevent the server from recognising the full 48 GB capacity.

Does this 1.10 V DDR5 ECC RDIMM need any firmware updates or battery replacements over time?

No firmware updates or battery replacements are required for the memory module itself; the ECC function operates continuously at 1.10 V and the registered design maintains stability for the life of the DIMM.

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