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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 1TB (8x128GB) DDR5 4800 PC5-38400 CL40 1.1V 4Rx4 ECC RDIMM ASUS RS720Q-E11-IMM memory upgrade

SKU CH-SWJT-EKQY8

1 TB DDR5-4800 ECC registered server memory kit, eight 128 GB modules at CL40 1.10 V for ASUS RS720Q-E11-IMM

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 1TB total capacity with eight 128GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM for data integrity
  • 1V operating voltage for efficient power use
  • Designed for ASUS RS720Q-E11-IMM server compatibility

ASUS RS720Q-E11-IMM compatible DDR5 kit

This 1 TB memory kit contains eight 128 GB DDR5 RDIMM modules built for the ASUS RS720Q-E11-IMM immersion-cooled server. Registered ECC operation and a low 1.1 V supply keep data integrity high in dense 2U4N chassis. The kit ships as a matched set for immediate population of all slots.

Enterprise buyers needing maximum registered ECC

The 4Rx4 organisation and CL40 latency suit virtualisation hosts, database nodes and HPC clusters that demand full memory channels. Workstations or desktops without RDIMM support cannot use these modules. Buyers who need unbuffered DIMMs or lower-density kits should select a different product.

Sustained load behaviour in immersion cooling

Modules run at DDR5 4800 PC5-38400 continuously while submerged in dielectric fluid, eliminating airflow constraints. Registered buffers and on-die ECC correct errors during multi-hour compute runs without throttling. The 1.10 V operating point reduces thermal density across all eight sticks.

How it compares

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

Price $28,519.99
Pricier than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $28.52 per GB
Pricier than about 80% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASUS Server Motherboard Compatible Series Memory
Model nameASUS DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-744K8
Total capacity1 TB (8 × 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
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items1 TB (8 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What server platform is required to run this 1TB kit of DDR5 4800 4Rx4 ECC RDIMMs?

This memory kit is validated for the ASUS RS720Q-E11-IMM 2U4N high-density immersion-cooling server and will only work in systems that support DDR5 RDIMM modules.

Can I keep existing DDR5 modules of a different rank or speed installed alongside these 4Rx4 CL40 modules?

Mixing ranks or speeds is not recommended; the server will typically default to the lowest common speed and may require specific population rules for 4Rx4 modules.

How do I confirm the full 1TB capacity and ECC function are active after installation?

Enter the system BIOS or UEFI and verify the total memory shows 1TB at 4800 MT/s with ECC status reported as enabled.

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