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Four green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 6400 CL52 2Rx4 ECC RDIMM SuperMicro X14SBM-TF memory upgrade

SKU CH-JWEA-ZWPSV

A 128 GB DDR5 registered ECC kit of four 32 GB modules running at 6400 MT/s with CL52 latency for SuperMicro X14SBM-TF servers

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB total capacity from four 32 GB modules
  • DDR5 6400 speed with CL52 latency for server workloads
  • ECC registered design protects data integrity under load
  • 1 V operation reduces power draw in dense configurations
  • Validated for SuperMicro X14SBM-TF motherboard compatibility

128 GB DDR5 6400 ECC RDIMM kit

This 128 GB kit delivers four 32 GB DDR5 6400 registered DIMMs with ECC and CL52 latency. It is built for the SuperMicro X14SBM-TF server board and other compatible platforms that require registered memory. System integrators and IT teams use it to maximise capacity on supported workstations and servers.

Sustained load behaviour

Registered buffering and on-die ECC keep data integrity intact during continuous workloads such as virtualisation, database serving or AI training. The 1.1 V operating voltage helps limit thermal output while the modules run at the rated 6400 MT/s speed. No heat spreaders are fitted, so airflow across the DIMM slots must be adequate.

Build and connectors

Each module uses the standard 288-pin DDR5 RDIMM form factor with a 2Rx4 organisation. The lack of heat spreaders reduces height for dense chassis but places more reliance on case ventilation. Four modules populate all channels on the target board for full bandwidth utilisation.

How it compares

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

Price $4,782.99
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 $37.37 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 Server/Workstation Compatible Series Memory
Model nameSupermicro DDR5 6400 MHz 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
Heat spreaderNo
Memory rank2Rx4
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 CL52 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the 1.1V DDR5 6400 kit run hot or loud inside a SuperMicro X14SBM-TF during 24/7 workloads?

The modules operate at 1.10V without a heat spreader; they rely on the server chassis airflow for cooling and have no moving parts, so they add no audible noise.

What must the server already have to accept this 288-pin 2Rx4 ECC RDIMM kit?

The motherboard must provide DDR5 RDIMM slots that support registered ECC memory and a BIOS capable of initialising 6400 MT/s modules at CL52.

Will the four 32 GB sticks work alongside any existing DDR5 RDIMMs I keep in the other slots?

All four modules are matched 2Rx4 PC5-51200 parts; mixing ranks or speeds can prevent the system from training at 6400 MT/s, so identical modules are recommended.

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