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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM MR51200-744K8 1TB (8 x 128GB) DDR5 6400 CL52 4Rx4 ECC RDIMM memory upgrade

SKU CH-6EP6-6PXV7

Eight 128 GB DDR5 RDIMMs deliver 1 TB of registered ECC memory at 6400 MT/s with CL52 latency and 1.1 V operation for the Supermicro X14SDW-72C-SP9F 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

Size 1TB 8X128GB

Show 4 more
  • 1 TB capacity from eight 128 GB modules for maximum memory density
  • DDR5 6400 speed with CL52 latency for high-throughput server workloads
  • Registered ECC architecture with 4Rx4 organisation for full-slot stability and error correction
  • 1 V operation matching the Supermicro X14SDW-72C-SP9F memory-controller specification
  • 288-pin RDIMM form factor verified for the target motherboard's population rules

Exact-match 1TB DDR5 kit

This NEMIX RAM kit delivers 1TB of memory across eight 128GB DDR5 RDIMMs rated at 6400MHz PC5-51200 with CL52 latency and 1.1V operation. It is built as a verified upgrade for the Supermicro X14SDW-72C-SP9F motherboard and uses 4Rx4 registered ECC modules that the board's memory controller expects.

Registered ECC stability

Registered buffering offloads the memory controller so every slot runs fully populated at rated speed, while on-die ECC corrects single-bit errors before they reach production workloads. The modules operate at the standard 1.1V DDR5 voltage without heat spreaders, relying on the server chassis airflow for thermal management.

Eight-module population kit

The package contains exactly eight 288-pin RDIMMs totalling 1TB, matching the motherboard's supported population rules for full-capacity operation. Buyers who need a different capacity or a UDIMM form factor should verify their platform requirements before ordering.

How it compares

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

Price $36,635.99
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 $36.64 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 numberMR51200-744K8
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 rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items1 TB 8 × 128 GB DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

How do I install this 288-pin RDIMM kit on the Supermicro X14SDW-72C-SP9F and what step is commonly missed?

Power off the server, open the chassis, and insert each 128 GB module into the slots specified by the motherboard manual in the exact population order; the step most often missed is confirming the 4Rx4 rank layout matches the board's per-channel rank limit before booting.

What maintenance or replacement will this 1 TB DDR5 6400 ECC RDIMM kit need over time?

The modules have no moving parts and no heat spreader, so no routine maintenance is required; replacement only occurs if a DIMM fails, at which point the lifetime warranty covers a direct swap of the faulty 128 GB stick.

What limit appears first when this 4Rx4 registered ECC memory runs sustained workloads at 1.1 V?

The memory controller's maximum supported rank-per-channel ceiling is reached before thermal or voltage limits, because eight 4Rx4 DIMMs fully populate the board's channels at the rated 6400 MT/s.

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