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Four green DDR5 RDIMM modules in a kit

NEMIX RAM

NEMIX RAM MR51200-324K4 128GB 4x32GB DDR5 6400 CL52 1.1V 2Rx4 ECC RDIMM memory upgrade

SKU CH-1F4Q-1HMGX

128 GB DDR5 6400 CL52 1.1 V 2Rx4 ECC RDIMM kit validated for Supermicro X14SRA-T motherboards

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 4X32GB

Show 4 more
  • 128 GB total capacity from four 32 GB modules
  • DDR5 6400 speed rated at CL52 latency
  • 1 V operation reduces server power draw
  • Registered ECC design prevents silent data corruption
  • Validated for Supermicro X14SRA-T motherboard

Exact-match DDR5 server kit

This 128GB kit contains four 32GB DDR5 6400 RDIMM modules built to the 288-pin registered ECC standard. It runs at CL52 latency with a 1.10V operating voltage and 2Rx4 organization. The modules are specified for Supermicro X14SRA-T motherboards that require registered memory.

Suited for validated Supermicro platforms

Administrators populating a Supermicro X14SRA-T board with the exact rank, voltage and timing the memory controller expects will get full-capacity recognition at rated speed. Builders needing unbuffered UDIMMs, SODIMM form factors, non-ECC operation or different DDR generations cannot use this kit.

Registered ECC with 2Rx4 organization

The registered buffer offloads the memory controller so every slot runs fully populated while ECC corrects single-bit errors on the fly. This combination of registered signalling and dual-rank x4 chips is the single specification that determines whether the kit matches the motherboard's population rules.

How it compares

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

Price $4,600.99
Pricier than about 79% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $35.95 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 numberMR51200-324K4
Total capacity128 GB (4 × 32 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 items128 GB 4 × 32 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How do I install the 4x32GB DDR5 6400 2Rx4 RDIMM kit on the Supermicro X14SRA-T and what slot order does the manual require?

Power down the server, open the chassis, and follow the motherboard manual's exact DIMM population sequence for registered ECC modules; populate the specified slots in the order shown so the memory controller recognises all 128GB at DDR5-6400.

What maintenance or replacement will the 288-pin DDR5 ECC RDIMM kit need during its service life?

The modules have no moving parts and no heat spreader; under normal server airflow they require no periodic maintenance, and ECC corrects single-bit errors automatically, so replacement is only needed if a module fails.

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

The registered buffer and on-die ECC keep signal integrity at full population, so the first ceiling is the memory controller's maximum supported bandwidth at DDR5-6400 across all four slots.

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