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

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 6400 CL52 2Rx4 ECC RDIMM for SuperMicro X14SBI-TF memory upgrade

SKU CH-K2B2-AZ2R0

A 64GB DDR5 ECC registered server memory kit with two 32GB modules rated at 6400MHz CL52 for SuperMicro X14SBI-TF systems

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64 GB total capacity for demanding server workloads
  • DDR5 6400 speed delivers high bandwidth for data-intensive tasks
  • ECC registered design detects and corrects memory errors
  • 10 V operation reduces power draw in dense configurations
  • 2Rx4 organisation optimises rank density for SuperMicro X14SBI-TF

Capacity and platform fit

This kit provides 64GB of DDR5 memory in two 32GB modules built for the SuperMicro X14SBI-TF server board. It targets administrators who need registered ECC capacity for stable operation in virtualization or database workloads.

Registered ECC design and daily handling

Each module uses a 288-pin RDIMM form factor with a 2Rx4 organisation and runs at 1.1V without a heat spreader. The registered buffer reduces electrical load on the memory controller, while on-die ECC corrects single-bit errors to protect data integrity during continuous uptime.

DDR5 6400 bandwidth ceiling

The PC5-51200 rating sets a maximum transfer rate of 6400 MT/s with CL52 latency. Real-world throughput will depend on the platform's memory controller and the number of populated slots, so sustained bandwidth may fall below the peak specification.

How it compares

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

Price $2,621.99
Pricier than about 71% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $40.97 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 numberMR51200-324K2
Total capacity64 GB (2 × 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 items64 GB (2 × 32 GB) DDR5 6400 MHz PC5-51200 2Rx4 1.1 V CL52 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What speed does the DDR5 6400 interface run at in this kit?

The modules are rated for DDR5 6400 (PC5-51200) with a CAS latency of CL52 and operate at 1.10V.

What physical slot and form factor do these modules require?

Each module uses a 288-pin DDR5 RDIMM form factor and fits standard registered DIMM slots on the SuperMicro X14SBI-TF motherboard.

How do I install the 2Rx4 registered DIMMs and what step is often missed?

Power down the server, open the chassis, align the notch on each 288-pin module with the slot key, press firmly until both retention clips click, then verify in BIOS that both 32GB modules are detected at 6400 MT/s.

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