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Four green DDR5 RDIMM modules in static bags

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 6400 CL52 1.1V ECC RDIMM memory upgrade

SKU CH-R1AP-BYMWB

128 GB of DDR5 6400 ECC registered memory in a four-module kit for Supermicro 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
  • 128GB total capacity across four 32GB modules
  • DDR5 6400 speed with PC5-51200 bandwidth rating
  • ECC registered design for server data integrity
  • 1V operation at CL52 latency timing
  • Validated for SuperMicro X14SBM-TP4F compatibility

Capacity and platform fit

This kit delivers 128GB of DDR5 memory across four 32GB registered DIMMs. It is built for the SuperMicro X14SBM-TP4F motherboard and similar server platforms that require ECC RDIMM modules. The 2Rx4 organisation and CL52 timing suit workloads that prioritise data integrity over low latency.

ECC registration and voltage

Error-correcting code and registered buffering protect stored data and reduce electrical load on the memory controller. Operating at 1.1V, the modules draw less power per gigabyte than higher-voltage alternatives. No heat spreaders are fitted, so airflow across the bare PCB is expected in the chassis.

288-pin form factor and density

Each module uses the standard 288-pin DDR5 RDIMM connector, ensuring mechanical compatibility with the target board. Four populated slots leave no room for further expansion on a four-channel platform. Builders needing more than 128GB must select a board with additional DIMM slots.

How it compares

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

Price $5,226.99
Pricier than about 80% 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 $40.84 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

Will the 1.10 V DDR5 RDIMM modules need active cooling or replacement fans over time?

These modules have no heat spreader and run at 1.10 V; server chassis airflow is normally sufficient and no moving parts exist to wear out.

What limits sustained throughput first on a 6400 CL52 2Rx4 kit?

The CAS latency of CL52 and the dual-rank 2Rx4 organisation set the timing ceiling before bandwidth saturates.

How much power and heat does the 128 GB kit produce under continuous load?

At 1.1 V per module the kit draws modest power and generates low heat, relying on standard server airflow for cooling.

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