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Four green DDR5 RDIMM sticks in anti-static tray

NEMIX RAM

NEMIX RAM DDR5 4800 ECC RDIMM 512GB 4x128GB CL40 1.1V Server memory upgrade

SKU CH-N328-W0T80

512GB quad-kit of DDR5 4800 registered ECC RDIMMs at 1.1V CL40, validated for the Supermicro H13SVW-NT-OS1 motherboard

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 512GB 4X128GB

Show 12 more
  • 512 GB total capacity from four 128 GB modules for maximum server density
  • DDR5 4800 speed with CL40 latency delivers rated throughput for demanding workloads
  • Registered ECC design corrects single-bit errors and stabilises fully populated channels
  • 1 V operation matches the motherboard's memory controller specification exactly
  • 288-pin RDIMM form factor verified for Supermicro H13SVW-NT-OS1 compatibility

512GB DDR5-4800 ECC RDIMM kit

This 512GB kit contains four 128GB DDR5-4800 registered ECC modules built for the Supermicro H13SVW-NT-OS1 motherboard. Each DIMM runs at 1.1V with CL40 timing and a 2Rx4 rank layout that matches the board's memory-controller expectations. It is intended for administrators who need maximum supported capacity in a single validated package.

Registered ECC with 2Rx4 organisation

The registered buffer reduces electrical load on the memory controller so all four slots can be populated at full speed, while on-die ECC corrects single-bit errors before they affect running workloads. The 2Rx4 rank structure and 1.1V operating point are the exact values the platform firmware looks for during training, avoiding down-clocks or capacity limits caused by mismatched modules.

DDR5-4800 platform ceiling

DDR5-4800 is the baseline transfer rate for this generation; the modules will not exceed PC5-38400 bandwidth regardless of CPU capability. Population rules for the H13SVW-NT-OS1 may restrict which slots can be filled simultaneously or limit total capacity per channel, so the system manual must be consulted before installation. No heat spreader is fitted, so airflow across the bare PCBs must be provided by the chassis.

How it compares

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

Price $15,228.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $29.74 per GB
Pricier than about 85% 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 numberMR38400-724K4
Total capacity512 GB (4 × 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 items512 GB 4 × 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 128 GB modules need any firmware updates or reseating over time?

No firmware updates are required; the modules are designed to remain seated and stable for the life of the server.

What limit appears first when the 512 GB kit runs at DDR5 4800 continuously?

The memory controller reaches its maximum supported bandwidth of PC5 38400 before any thermal or power ceiling is hit.

How much heat and noise do the four 288 pin RDIMMs produce under all day load?

The modules run at 1.10 V with no heat spreader, generating minimal heat and zero audible noise in a properly cooled chassis.

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