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Sixteen green DDR5 RDIMM modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM MR51200-724K16 2TB 16x128GB DDR5 6400 ECC RDIMM Supermicro H14DST-FL

SKU CH-0VFJ-N7MYV

A 2 TB DDR5 ECC registered DIMM kit of sixteen 128 GB modules running at 6400 MT/s with CL52 latency, 1.1 V operation and 2Rx4 organisation, validated for the Supermicro H14DST-FL motherboard

  • Total capacity2 TB (16 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 2 TB total capacity lets you fully populate 16 slots with 128 GB modules
  • DDR5 6400 speed runs at the rated PC5-51200 data rate your controller expects
  • CL52 latency and 1.1 V voltage match the board's exact timing and power requirements
  • Registered ECC architecture offloads the controller and corrects single-bit errors on the fly
  • Verified fitment for the Supermicro H14DST-FL motherboard with 288-pin RDIMM form factor

Exact-match upgrade kit

This 2TB kit contains 16 modules of 128GB each, built to the DDR5 6400 standard with CL52 latency and 1.1V operation. The 2Rx4 registered ECC design matches the memory controller requirements of the Supermicro H14DST-FL motherboard so the system recognises the full capacity at rated speed.

DDR5 registered DIMM limits

DDR5 RDIMM modules use a 288-pin interface and registered architecture to reduce electrical load on the memory controller when every slot is populated. The 1.1V voltage and CL52 timing are fixed by the JEDEC PC5-51200 specification, so the kit cannot run at lower latencies or higher voltages without leaving the validated profile.

Verify motherboard population rules

The Supermicro H14DST-FL board defines specific slot-filling order and maximum supported capacity per channel; the manual must be consulted before installation. Systems requiring unbuffered UDIMM or SODIMM form factors cannot use these registered 288-pin modules.

How it compares

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

Price $72,044.99
Pricier than about 99% of the 21,161 comparable items (median $397.99).
Total capacity 2 TB (16 × 128 GB)
Higher than about 99% of the 20,941 comparable items (median 32 GB).
Price per GB $36.02 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-724K16
Total capacity2 TB (16 × 128 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 items2 TB 16 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Should I choose the 16-module 2TB kit or a smaller capacity for my Supermicro H14DST-FL?

The 16-module 2TB kit fills every DIMM slot on the Supermicro H14DST-FL, delivering maximum registered ECC capacity at the board's supported DDR5-6400 speed.

What does the DDR5-6400 rating mean once the modules are installed in the server?

The kit runs at 6400 MT/s with CL52 latency at 1.1V, so the memory controller operates at its rated throughput without downclocking when all 16 slots are populated.

How does the 288-pin RDIMM interface and registered ECC design affect real-world operation?

The registered buffer reduces electrical load on the controller, allowing all 16 modules to run at full DDR5-6400 speed, while ECC corrects single-bit errors to prevent silent data corruption.

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