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Two green DDR5 RDIMM modules, black chips, no heat spreader

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 6400MHz CL52 4Rx4 1.1V ECC RDIMM Supermicro X14SBM-TF memory upgrade

SKU CH-RMWY-878ZR

128 GB DDR5 ECC registered memory kit, two 64 GB modules at 6400 MHz CL52 for Supermicro X14SBM-TF servers

  • Total capacity128 GB (2 × 64 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank4Rx4
  • 128 GB capacity with two 64 GB modules
  • DDR5 6400 MHz speed rated at PC5-51200
  • ECC registered design for data integrity
  • 1 V low-voltage operation reduces power draw
  • Validated for Supermicro X14SBM-TF systems

Supermicro X14SBM-TF 128GB DDR5 RDIMM Kit

This 128GB kit contains two 64GB DDR5 ECC registered DIMMs built for the Supermicro X14SBM-TF platform. The modules run at 6400MHz with CL52 latency at 1.1V and use a 4Rx4 organisation. They are designed for server and workstation boards that require registered ECC memory.

Suited for administrators upgrading X14SBM-TF

This kit fits builders who need registered ECC DDR5 memory validated for the Supermicro X14SBM-TF motherboard. It is not for buyers who need unbuffered UDIMMs, non-ECC modules or a different pin count such as 262-pin SO-DIMM. It also does not suit systems limited to lower speeds or different voltage requirements.

Deciding spec: 4Rx4 registered ECC at 6400MHz

The 4Rx4 registered ECC configuration at 6400MHz is the single specification that determines compatibility with the X14SBM-TF memory controller. The board must support 288-pin DDR5 RDIMMs with this rank structure and voltage. If the platform requires a different rank layout or unbuffered memory, this kit will not function.

How it compares

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

Price $4,210.99
Pricier than about 77% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $32.90 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 lineSupermicro Compatible Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server RAM
Part numberMR51200-944K2
Total capacity128 GB (2 × 64 GB)
Product type288-PIN DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB (2 × 64 GB) DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Should I choose the 2x64GB kit or a different capacity for the Supermicro X14SBM-TF?

This kit provides 128GB total as 2x64GB modules. The board has 12 DDR5 slots, so two modules leave room for future expansion while populating one DIMM per channel for balanced bandwidth.

What does the 6400MHz rating mean when installed in the X14SBM-TF?

The modules run at DDR5-6400 (PC5-51200) with CL52 latency at 1.1V. Actual speed depends on the CPU's memory controller and BIOS settings; the board will train to the highest common speed supported by the installed processor.

Is the 288-pin DDR5 RDIMM interface compatible with the X14SBM-TF and what limits apply?

Yes, the 288-pin DDR5 RDIMM form factor matches the X14SBM-TF's registered DIMM slots. ECC and registered signalling are required; the 4Rx4 organisation and 1.1V operation are within the platform's DDR5 RDIMM specifications.

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