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Two green DDR5 RDIMM sticks with black chips and gold contacts lying side by side

NEMIX RAM

NEMIX RAM DDR5 6400 ECC RDIMM 256GB (2x128GB) Supermicro H13SVW-NT memory upgrade

SKU CH-JP27-1J5G8

256GB DDR5-6400 ECC registered RDIMM kit (2×128GB, CL52, 1.1V) validated for the Supermicro H13SVW-NT motherboard

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 256GB total capacity with two 128GB modules
  • DDR5-6400 speed rated at PC5-51200 bandwidth
  • CL52 latency at 1.1V operating voltage
  • 2Rx4 registered ECC for error correction
  • 288-pin RDIMM form factor fits Supermicro H13SVW-NT

256GB DDR5 6400 ECC RDIMM kit

This 256GB kit contains two 128GB DDR5 6400 registered ECC RDIMMs built for the Supermicro H13SVW-NT motherboard. Modules run at 1.1V with CL52 latency and a 2Rx4 organisation. The registered design lets the board run fully populated at rated speed while ECC corrects single-bit errors on the fly.

Ideal for Supermicro H13SVW-NT upgrades

Suits administrators expanding a Supermicro H13SVW-NT server to its maximum supported capacity with validated registered ECC modules. Builders needing unbuffered UDIMMs, SODIMM form factors, non-ECC memory or speeds other than DDR5 6400 should select a different kit.

DDR5 6400 registered ECC with 2Rx4 ranks

The memory controller on the H13SVW-NT expects DDR5 6400 registered ECC RDIMMs at 1.1V with a 2Rx4 rank structure. Matching this exact rank, voltage and timing ensures the system recognises the full 256GB and operates at the rated 6400 MT/s data rate.

How it compares

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

Price $8,675.99
Pricier than about 85% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $33.89 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 numberMR51200-724K2
Total capacity256 GB (2 × 128 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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 2 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Does this kit require a Supermicro H13SVW-NT motherboard with DDR5 RDIMM slots to function?

Yes, the 288-pin DDR5 RDIMM form factor is designed specifically for the Supermicro H13SVW-NT motherboard's registered DIMM slots and will not fit UDIMM or SODIMM sockets.

Can I mix these 2Rx4 CL52 modules with existing DDR5 RDIMMs of a different rank or speed on the same board?

Mixing ranks or speeds is not recommended; the motherboard's memory controller expects matched 2Rx4 CL52 modules at 1.1V to run all channels at the rated DDR5 6400 speed without downclocking.

How do I confirm the full 256GB is recognised and running at 6400MT/s after installation?

Enter the system BIOS or UEFI and verify the memory information screen shows 256GB total capacity, DDR5 6400 speed, CL52 timings, and ECC active across both DIMMs.

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