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Twelve green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM RS700A-E12-RS4U 1.5TB (12x128GB) DDR5 4800 CL40 1.1V ECC RDIMM memory upgrade

SKU CH-5E5D-ANTEE MPN RS700A-E12-RS4U

A 1.5 TB DDR5 registered ECC server memory kit containing twelve 128 GB modules rated at 4800 MT/s CL40 and 1.1 V

  • Total capacity1.5 TB (12 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 5 TB total capacity with twelve 128 GB modules
  • DDR5 4800 speed rated at PC5-38400
  • ECC registered design protects data integrity
  • Low 1.10 V operation reduces power draw
  • Validated for ASUS RS700A-E12-RS4U server

1.5 TB DDR5 server kit

This NEMIX RAM kit delivers 1.5 TB of DDR5 4800 memory in twelve 128 GB modules. It is built for the ASUS RS700A-E12-RS4U dual-processor 1U server and carries ECC registered RDIMM specifications. Each module runs at 1.10 V with a CAS latency of CL40. The kit targets administrators scaling memory capacity in compatible enterprise platforms.

Who this suits and who should look elsewhere

This kit suits IT teams upgrading the specified ASUS 1U server to its maximum supported density with validated ECC registered modules. It is not for buyers needing consumer UDIMM form factors, non-ECC memory, lower voltages, or modules that fit desktop or workstation platforms outside the listed compatibility.

Deciding specification: 4Rx4 rank configuration

The 4Rx4 rank layout determines whether the server memory controller can address the full 1.5 TB across all twelve slots. Verify the platform documentation accepts 4Rx4 RDIMMs at DDR5 4800 before purchase; an incompatible rank structure will prevent boot or reduce usable capacity.

How it compares

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

Price $43,949.99
Pricier than about 95% of the 21,161 comparable items (median $397.99).
Total capacity 1.5 TB (12 × 128 GB)
Higher than about 97% of the 20,941 comparable items (median 32 GB).
Price per GB $29.30 per GB
Pricier than about 83% 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 numberMR38400-744K12
Total capacity1.5 TB (12 × 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 items1.5 TB (12 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the 12x 128 GB DDR5 RDIMM kit require any firmware updates or periodic reseating to stay stable in the ASUS RS700A-E12-RS4U?

The modules are rigorously stress-tested for compatibility with the RS700A-E12-RS4U and ship ready to install; no firmware updates or scheduled reseating are specified for the memory itself.

What thermal or throttling limit appears first when the 1.5 TB kit runs at DDR5 4800 CL40 continuously?

Each RDIMM operates at 1.10 V with a CL40 latency; the registered design and ECC circuitry manage signal integrity, so the platform's memory-controller thermal envelope is the first practical ceiling.

How much extra heat and power does the 12-module kit add when the server runs all day?

Twelve 128 GB RDIMMs at 1.10 V draw modest power per module; total heat scales with capacity but stays within normal DDR5 registered DIMM limits for a 1U dual-processor chassis.

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