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Four green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 6400 CL52 256GB 4x64GB ECC RDIMM Supermicro X14SRG-TF memory upgrade

SKU CH-HWY1-Q940Z

A 256 GB DDR5-6400 ECC registered RDIMM kit of four 64 GB modules at 1.1 V CL52, validated for the Supermicro X14SRG-TF motherboard

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 4X64GB

Show 4 more
  • 256 GB capacity lets you fully populate the Supermicro X14SRG-TF with four 64 GB modules
  • DDR5 6400 speed matches the board's rated frequency so the controller runs at full data rate
  • CL52 latency and 1.1 V voltage meet the exact timing and power profile the platform expects
  • Registered ECC architecture buffers each command and corrects single-bit errors to prevent silent data corruption
  • 288-pin RDIMM form factor fits the server's DIMM slots and supports the required 4Rx4 rank configuration

Exact-match DDR5 RDIMM kit for Supermicro X14SRG-TF

This 256 GB kit contains four 64 GB DDR5 6400 modules built to the precise rank, voltage and timing the board expects. Registered ECC RDIMM architecture ensures the memory controller recognises full capacity at rated speed. It is not suited for workstations that require unbuffered UDIMMs or SODIMM form factors.

Thermals and power at rated operation

Each module runs at 1.1 V with CL52 latency, keeping power draw low across all four populated slots. The registered design buffers address and command signals, reducing electrical load on the controller during sustained workloads. No heat spreader is fitted, so chassis airflow must be adequate for dense server configurations.

Build quality and daily implications

Major OEM Samsung, Micron or Hynix chips provide enterprise-grade stability with on-the-fly single-bit error correction. The 288-pin RDIMM form factor matches the motherboard's slot requirements exactly, avoiding fitment issues. Population order and maximum supported capacity should be confirmed in the system manual before installation.

How it compares

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

Price $9,084.99
Pricier than about 86% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $35.49 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 numberMR51200-944K4
Total capacity256 GB (4 × 64 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 items256 GB 4 × 64 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 the four 64GB DDR5 RDIMM modules in the Supermicro X14SRG-TF, and which slot order does the manual require?

Power down the server, open the chassis, and insert each 288-pin RDIMM into the exact DIMM sequence shown in the Supermicro X14SRG-TF manual; the registered 4Rx4 modules must occupy the approved slots in the prescribed order so the memory controller recognises the full 256GB at DDR5-6400 CL52 1.1V.

What maintenance or replacement will the NEMIX RAM DDR5 ECC RDIMM kit need over its service life?

The modules have no heat spreaders and no moving parts, so routine maintenance is limited to keeping server airflow clean; if a 64GB RDIMM ever fails, the lifetime replacement warranty covers a direct swap of the defective stick.

What is the first limit that appears when the 256GB kit runs sustained workloads on the X14SRG-TF?

The registered 4Rx4 architecture offloads the memory controller, allowing all four slots to stay fully populated at the rated DDR5-6400 CL52 1.10V without down-clocking, so the practical ceiling is the motherboard's maximum supported capacity rather than a thermal or signal-integrity bottleneck.

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