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Green circuit board with black memory chips, gold edge connectors, no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 6400 CL52 2Rx4 ECC Registered RDIMM memory upgrade for Supermicro H14DSG-OD

SKU CH-DEV7-0XM9K

128 GB DDR5 6400 RDIMM with ECC and registered buffering, validated for the Supermicro H14DSG-OD motherboard

  • Total capacity128 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 128 GB capacity lets you fully populate the Supermicro H14DSG-OD
  • DDR5 6400 speed runs at the board's rated frequency
  • CL52 CAS latency matches the controller's timing table
  • Registered ECC design corrects single-bit errors on the fly
  • 1 V operation keeps power draw within spec

128 GB DDR5 RDIMM for Supermicro H14DSG-OD

This 128 GB DDR5 6400 registered ECC module is built to the exact rank, voltage and timing the Supermicro H14DSG-OD memory controller expects. It installs as a single 288-pin RDIMM so the board recognises the full capacity at rated speed.

Registered ECC with 2Rx4 organisation

The registered architecture buffers address and command signals, letting every slot run fully populated without overloading the controller. On-die ECC corrects single-bit errors in flight, preventing silent data corruption and unplanned reboots in production workloads.

DDR5 6400 CL52 at 1.10 V

The module operates at the JEDEC-standard 1.10 V with a CAS latency of 52 cycles. It will not fit or function in boards that require UDIMM, SODIMM or earlier DDR generations, and population rules in the motherboard manual dictate which slots must be filled first.

How it compares

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

Price $4,745.99
Pricier than about 79% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $37.08 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 numberMR51200-724K1
Total capacity128 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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will the 2Rx4 registered ECC modules need firmware updates or replacement after heavy server workloads?

No firmware updates are required; the registered ECC design corrects single-bit errors on the fly and the modules are built for continuous enterprise duty.

What limits sustained throughput first on these CL52 6400 MT/s RDIMMs?

The DDR5 6400 PC5-51200 data rate and CL52 latency set the bandwidth ceiling; the memory controller on the H14DSG-OD will not push beyond that rated speed.

How much heat and power do the 1.1 V 128 GB sticks produce when running 24/7?

At 1.1 V the modules draw minimal power and run without a heat spreader, so thermal output stays low even under constant load.

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