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Eight green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM DDR5 6400 1TB 8x128GB ECC RDIMM Supermicro H14SSL-NT

SKU CH-622Z-5XX1M

Eight 128 GB DDR5 RDIMMs deliver 1 TB of registered ECC memory at 6400 MT/s for the Supermicro H14SSL-NT motherboard

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 1TB DDR5-6400 ECC RDIMM kit runs at full rated speed
  • Registered 2Rx4 architecture keeps all eight slots stable at capacity
  • ECC corrects single-bit errors preventing silent data corruption
  • 1V CL52 timing matches Supermicro H14SSL-NT memory controller exactly
  • Eight 128GB modules deliver 1TB in a single validated kit

Server-grade DDR5 kit for Supermicro H14SSL-NT

This 1 TB kit contains eight 128 GB DDR5-6400 Registered ECC RDIMMs built to the exact rank, voltage and timing the Supermicro H14SSL-NT memory controller expects. The modules install in the board’s 288-pin slots and are recognised at full capacity without manual tuning. Builders who need unbuffered UDIMMs or laptop SODIMMs cannot use this registered kit.

Thermals noise and power at rated load

Each module runs at 1.1 V with a CL52 latency, so the memory subsystem draws only the power the platform allocates at its rated DDR5-6400 speed. No heat spreaders are fitted, relying on the server chassis airflow to keep temperatures within specification. Acoustic output is determined entirely by the system fans, not the memory itself.

What the bundle and spec-matched design change

The eight-module pack fills the supported population order in a single purchase, eliminating the risk of mixing ranks or speeds that can prevent the board from training at 6400 MT/s. Registered buffering offloads the memory controller so every slot runs fully populated, while on-die ECC corrects single-bit errors before they reach production workloads. Lifetime replacement coverage and US-based technical support back the installation.

How it compares

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

Price $37,768.99
Pricier than about 94% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $37.77 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 numberMR51200-724K8
Total capacity1 TB (8 × 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 TB 8 × 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 8x128GB DDR5 RDIMM kit on the Supermicro H14SSL-NT and what population step is often missed?

Populate all eight 288-pin slots following the motherboard manual's exact DIMM sequence; the common mistake is skipping the prescribed order, which prevents the 1TB kit from being recognised at DDR5 6400 speed.

What maintenance or replacement will the 1TB DDR5 6400 ECC RDIMM kit need over its service life?

No scheduled maintenance is required; ECC corrects single-bit errors automatically, and if a module ever fails the lifetime replacement warranty covers a direct swap of the defective 128GB RDIMM.

What limit appears first when the 8x128GB DDR5 6400 kit runs sustained workloads on the H14SSL-NT?

The registered 2Rx4 architecture offloads the memory controller so every slot runs fully populated at the rated 6400 MT/s and 1.1V without throttling, making thermal or signal-integrity limits the first to appear under sustained load.

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