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Twelve green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 1.5TB 12x128GB DDR5 6400 CL52 2Rx4 ECC RDIMM Supermicro H14SSL-NT memory upgrade

SKU CH-JA4A-W1130

A 1.5TB twelve-module DDR5 6400 CL52 ECC registered RDIMM kit validated for the Supermicro H14SSL-NT motherboard

  • Total capacity1.5 TB (12 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 5 TB capacity from twelve 128 GB modules for memory-intensive workloads
  • DDR5 6400 speed with CL52 latency delivers rated throughput on supported platforms
  • 2Rx4 registered ECC architecture corrects single-bit errors and stabilises fully populated channels
  • 1 V operation matches the motherboard's memory-controller specification
  • Verified fitment for the Supermicro H14SSL-NT with 288-pin RDIMM form factor

Exact-Match Server Upgrade

This 1.5 TB kit delivers twelve 128 GB DDR5 Registered ECC RDIMMs tuned to 6400 MT/s at CL52 and 1.1 V. It is built for the Supermicro H14SSL-NT motherboard so every slot is recognised at full capacity and rated speed without manual tuning.

Thermals Power And Stability

Registered buffering offloads the memory controller while on-die ECC corrects single-bit errors in real time, preventing silent data corruption and unplanned reboots. The modules run at the standard 1.1 V DDR5 voltage and have no heat spreaders, relying on chassis airflow for cooling.

Build Integration

The 288-pin RDIMM form factor matches the board's required DIMM type; UDIMM or SODIMM modules will not fit. Full population across all twelve slots follows the motherboard's specific population rules, so consult the system manual for the approved installation order before adding the kit.

How it compares

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

Price $50,923.99
Pricier than about 96% of the 21,161 comparable items (median $397.99).
Total capacity 1.5 TB (12 × 128 GB)
Higher than about 97% of the 20,941 comparable items (median 32 GB).
Price per GB $33.95 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 numberMR51200-724K12
Total capacity1.5 TB (12 × 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 items1.5 TB 12 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How do I install the 12 288-pin DDR5 RDIMM modules in the Supermicro H14SSL-NT and which population step is most often missed?

Follow the motherboard manual for the exact slot sequence; the step most often missed is populating all 12 slots in the prescribed order so the memory controller recognises the full 1.5 TB at DDR5-6400.

What maintenance or replacement will the 12-module DDR5 ECC RDIMM kit need over its service life?

No scheduled maintenance is required; if a module fails the lifetime replacement warranty covers a direct swap of the defective 128 GB 2Rx4 RDIMM.

What limit appears first when the 12 x 128 GB DDR5-6400 CL52 1.1 V kit runs sustained workloads?

The DDR5-6400 CL52 timing at 1.1 V is the first ceiling; fully populated registered channels operate at this rated speed and latency under continuous load.

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