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Six green 288-pin DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 768GB (6×128GB) DDR5 6400 CL52 1.1V ECC Registered RDIMM for Supermicro H13SVW-NT

SKU CH-H0JS-BEXMJ

A 768 GB DDR5 registered ECC memory kit of six 128 GB modules running at 6400 MT/s CL52 and 1.1 V, validated for the Supermicro H13SVW-NT motherboard

  • Total capacity768 GB (6 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 768 GB total capacity from six 128 GB modules
  • DDR5 6400 speed with CL52 latency for rated throughput
  • Registered ECC design corrects single-bit errors and supports full population
  • 1 V operation matches the motherboard's memory controller specification
  • Verified fit for the Supermicro H13SVW-NT motherboard

Server Memory Kit

This NEMIX RAM kit provides 768 GB of DDR5 memory in six 128 GB registered ECC RDIMMs. It is built for the Supermicro H13SVW-NT motherboard and runs at 6400 MT/s with CL52 latency at 1.1 V. The modules use a 2Rx4 rank structure and 288-pin form factor required by the platform.

Registered ECC Upgrade

The kit replaces smaller or slower DDR5 RDIMMs when the server needs maximum supported capacity across all populated slots. Registered buffering offloads the memory controller so every channel operates at full speed with a full complement of modules. ECC corrects single-bit errors on the fly to prevent silent data corruption and unplanned reboots.

Build Integration

The 288-pin RDIMM form factor fits only boards wired for registered DDR5; it will not work in UDIMM or SODIMM slots. Populating all six slots requires the motherboard memory population rules to be followed exactly as documented in the system manual. No heat spreaders are included, so chassis airflow must handle module cooling directly.

How it compares

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

Price $26,909.99
Pricier than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (6 × 128 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $35.04 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 numberMR51200-724K6
Total capacity768 GB (6 × 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 items768 GB 6 × 128 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will the 288-pin RDIMM modules fit the DIMM slots on a Supermicro H13SVW-NT motherboard?

Yes, the kit uses the 288-pin Registered RDIMM form factor required by the H13SVW-NT, so each 128 GB module seats directly in the board's DDR5 slots.

What is the correct population order for the six 2Rx4 modules on the H13SVW-NT, and which step is often missed?

Follow the motherboard manual's exact slot sequence for six DIMMs; the step most often missed is populating slots in the prescribed order rather than filling adjacent sockets first.

Do these 1.1 V DDR5 RDIMMs require any firmware updates or periodic maintenance after installation?

No firmware updates are needed for the memory itself; ensure the system BIOS is current for full 768 GB support, then no ongoing maintenance is required beyond standard server health checks.

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