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

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR5 6400MHz CL52 ECC RDIMM Supermicro X14SBI-TF memory upgrade

SKU CH-J2YN-MCEZ8

A 256 GB registered DDR5 server kit with ECC, four 64 GB modules at 6400 MHz CL52, 1.1 V, validated for the Supermicro X14SBI-TF

  • Total capacity256 GB (4 × 64 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank4Rx4
  • 256 GB total capacity across four 64 GB modules for high-density server workloads
  • DDR5 6400 MHz speed with CL52 latency delivers fast data throughput
  • ECC registered RDIMM design detects and corrects memory errors for reliability
  • 1 V operating voltage reduces power draw in dense configurations
  • Validated for Supermicro X14SBI-TF motherboard compatibility

256GB DDR5 ECC RDIMM kit for Supermicro X14SBI-TF

This NEMIX RAM kit provides 256GB of DDR5 memory across four 64GB registered DIMMs. It runs at 6400MHz with CL52 latency and 1.10V operation. The modules are ECC RDIMMs built for the Supermicro X14SBI-TF server platform.

Upgrade from lower-capacity or slower DDR5 RDIMMs

Replacing smaller DDR5 RDIMM sets with this 4x64GB kit raises total capacity to 256GB and moves speed to PC5-51200. The jump is worth it when workloads need more memory bandwidth and error-correcting registered modules for stability.

Suits IT teams scaling Supermicro X14SBI-TF servers

This kit fits administrators expanding memory in compatible Supermicro systems for virtualization or data-intensive tasks. Builders needing non-ECC UDIMMs, different form factors, or capacities beyond 256GB should look at other memory types.

How it compares

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

Price $8,167.99
Pricier than about 85% 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 $31.91 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 Compatible Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server RAM
Part numberMR51200-944K4
Total capacity256 GB (4 × 64 GB)
Product type288-PIN DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
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

Questions about this item

Will the 288-pin DDR5 RDIMM modules fit the Supermicro X14SBI-TF DIMM slots?

Yes, the kit uses 288-pin DDR5 RDIMM form factor which matches the board's DDR5 RDIMM slots.

What installation step is critical for the 4Rx4 registered modules on this board?

Populate all four channels in the order specified by the Supermicro X14SBI-TF manual to enable correct registered timing.

How should I handle the modules over time since they lack heat spreaders?

Keep chassis airflow directed over the bare DRAM; dust the slots annually and reseat if ECC correctable errors rise.

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