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Six green DDR5 RDIMM modules, black chips, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 768GB (6x128GB) 4800MHz CL40 2Rx4 ECC RDIMM memory upgrade for Supermicro H13SVW-NT

SKU CH-W818-K219Y

768GB DDR5 registered ECC kit with six 128GB modules at 4800MHz CL40 for Supermicro H13SVW-NT servers

  • Total capacity768 GB (6 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 768GB 6X128GB

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Speed 4800MHz

  • 768 GB total capacity for large-scale server workloads using six 128 GB modules
  • DDR5 4800 speed matches the memory controller for rated performance
  • CL40 latency and 1.1 V voltage align with platform timing requirements
  • Registered ECC architecture corrects single-bit errors and buffers signal load
  • 288-pin RDIMM form factor fits the Supermicro H13SVW-NT motherboard

Capacity and Compatibility

This 768 GB kit contains six 128 GB DDR5 RDIMM modules built to the exact rank, voltage and timing the Supermicro H13SVW-NT memory controller expects for full-capacity recognition at rated speed.

Who It Suits

It suits administrators populating every slot on that specific motherboard with registered ECC memory for enterprise stability; builders who need unbuffered UDIMMs, SODIMMs or non-ECC modules should look elsewhere.

Deciding Specification

The 2Rx4 registered ECC architecture at 1.1 V and CL40 is the single specification that determines whether this kit will be accepted by the board's memory population rules.

How it compares

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

Price $22,161.99
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 $28.86 per GB
Pricier than about 81% 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 numberMR38400-724K6
Total capacity768 GB (6 × 128 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
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 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

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

Yes, the kit uses the 288-pin DDR5 RDIMM form factor required by the H13SVW-NT, and the 2Rx4 rank structure matches the board's memory controller expectations.

What is the correct installation order for the six 128 GB modules on the H13SVW-NT?

Populate the DIMM slots following the motherboard manual's approved population sequence; the board's population rules dictate which channels must be filled first for full 768 GB operation.

Do the modules need active cooling since they lack a heat spreader?

The RDIMMs ship without a heat spreader and rely on the server chassis airflow; ensure the system's fan profile provides sufficient air movement across the DIMM slots for stable operation.

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