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Two green DDR5 RDIMM modules, no heat spreaders, 288-pin edge connectors

NEMIX RAM

NEMIX RAM DDR5 4800 ECC RDIMM 128GB (2x64GB) CL40 1.1V 2Rx4 Supermicro H14DSG-OM

SKU CH-BR8K-3C3FX

128 GB DDR5 ECC registered server memory kit, two 64 GB modules at 4800 MHz CL40 1.1 V 2Rx4, validated for Supermicro H14DSG-OM motherboards

  • 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

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  • DDR5-4800 speed delivers rated throughput for Supermicro H14DSG-OM
  • Registered ECC architecture prevents silent data corruption under load
  • 128 GB kit (2 × 64 GB) matches board population rules
  • 10 V operation meets DDR5 spec for server stability
  • 2Rx4 CL40 timing recognised by memory controller at full capacity

Exact-match DDR5 RDIMM kit for Supermicro H14DSG-OM

This 128GB kit contains two 64GB DDR5-4800 registered ECC modules built to the 288-pin RDIMM form factor. It is designed for servers that require registered memory with error correction and operates at 1.1V with CL40 latency. The 2Rx4 organization matches the memory controller expectations for full-capacity recognition.

Check your server manual for population rules

Supported capacities, approved DIMM slot order, and maximum module count vary by motherboard revision and BIOS version. The H14DSG-OM requires registered RDIMMs, not unbuffered UDIMMs or SODIMMs, so verify the exact configuration your chassis and firmware allow. Installing modules in the wrong slots can prevent boot or limit usable memory.

Kit delivers two matched modules for dual-channel

The pair is tested together so both DIMMs share identical timing, voltage, and rank characteristics, allowing the memory controller to initialize them at the rated 4800 MT/s speed. No heat spreaders are included, so airflow across the bare PCB must be provided by the server chassis fans. The package contains only the two memory modules.

How it compares

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

Price $3,327.99
Pricier than about 74% 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 $26.00 per GB
Pricier than about 71% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

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

Does the 128GB kit include both 64GB modules or do I need to buy a second kit?

The kit contains two 64GB RDIMMs for a total of 128GB; nothing else is required to reach that capacity.

Should I choose the CL40 4800MHz version or a different speed grade for the H14DSG-OM?

This module matches the board's qualified DDR5-4800 CL40 1.1V 2Rx4 specification exactly.

Will the registered ECC design run at the full 4800MT/s when all slots are populated?

Yes, the registered architecture offloads the controller so every populated slot operates at the rated 4800MT/s with ECC active.

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