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Two green DDR5 RDIMM modules without heat spreaders, 288-pin, 2Rx4 ECC registered, 128GB kit

NEMIX RAM

NEMIX RAM 128GB 2x64GB DDR5 4800 CL40 2Rx4 ECC RDIMM Supermicro H13SVW-NT-OS1 memory upgrade

SKU CH-0GF9-529R4

A 128 GB DDR5-4800 kit (2 × 64 GB) with CL40, 1.10 V, 2Rx4 registered ECC RDIMMs validated for the Supermicro H13SVW-NT-OS1 motherboard

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 2X64GB

Show 12 more
  • 128 GB total capacity from a matched 2 x 64 GB kit
  • DDR5-4800 speed with CL40 latency at 1.1 V
  • Registered ECC RDIMM design prevents data corruption
  • 2Rx4 dual-rank organisation for full-slot population
  • Verified compatible with Supermicro H13SVW-NT-OS1 motherboard

Supermicro H13SVW-NT-OS1 DDR5 upgrade

This 128GB kit contains two 64GB DDR5 4800 CL40 registered ECC RDIMMs built for the Supermicro H13SVW-NT-OS1 motherboard. It targets administrators who need the exact rank, voltage and timing the board expects so every slot is recognised at full capacity.

Registered ECC RDIMM kit

The 2Rx4 registered architecture buffers address and command signals, letting the memory controller drive a fully populated configuration without signal degradation. On-die ECC corrects single-bit errors in flight, preventing silent data corruption and unplanned reboots in production workloads.

DDR5 4800 RDIMM constraints

The modules run at 1.1V with a fixed CL40 latency and 288-pin RDIMM keying, so they only fit DDR5 registered DIMM slots. Population order and maximum supported capacity per slot are defined by the motherboard manual and must be verified before installation.

How it compares

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

Price $3,609.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $28.20 per GB
Pricier than about 79% 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 numberMR38400-924K2
Total capacity128 GB (2 × 64 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 items128 GB 2 × 64 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 2Rx4 ECC RDIMM modules require any firmware updates or periodic reseating to maintain stability?

No firmware updates or scheduled reseating are needed. The registered ECC design handles error correction automatically, and the modules are validated for continuous operation at the rated 4800 MT/s CL40 1.10 V settings.

What is the first limit reached when the kit runs at full 128 GB capacity under sustained load?

The memory controller's maximum supported frequency of 4800 MT/s is the primary ceiling; the modules are rated CL40 at 1.10 V, so latency and voltage remain fixed at those values during extended use.

How much heat and power does the 2 x 64 GB kit produce when the server runs all day?

Each module operates at 1.10 V without a heat spreader, so total power draw stays low and passive airflow in a standard server chassis is sufficient for continuous 24/7 operation.

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