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Twelve green DDR5 RDIMM modules in anti-static packaging

NEMIX RAM

NEMIX RAM RS700A-E12-RS12U 1.5TB (12x128GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-5P3F-PNBCV MPN RS700A-E12-RS12U

A 1.5 TB DDR5 ECC registered memory kit with twelve 128 GB modules running at 4800 MT/s CL40 for the ASUS RS700A-E12-RS12U server

  • 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 from twelve 128 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design detects and corrects data errors
  • 1 V operating voltage reduces server power draw
  • Validated for ASUS RS700A-E12-RS12U 1U dual-processor systems

Purpose-built server memory

This 1.5TB kit equips the ASUS RS700A-E12-RS12U dual-processor 1U server with twelve 128GB DDR5 4800 registered ECC modules. The 4Rx4 organisation and 1.1V operation match the platform’s validated memory topology for maximum density in a single-socket footprint.

Sustained-load behaviour

Registered buffering and on-die ECC keep data integrity intact during continuous enterprise workloads such as virtualisation, database caching and large-scale analytics. CL40 latency at 4800 MT/s delivers predictable throughput without the variability seen in unbuffered configurations under thermal pressure.

Build and connectivity

Each 288-pin RDIMM uses major-OEM Samsung, Micron or Hynix DRAM without heat spreaders, relying on the server’s directed airflow for cooling. The kit’s twelve-module count fills every DIMM slot in the 1U chassis, leaving no room for future expansion within the same system.

How it compares

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

Price $46,394.99
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 $30.93 per GB
Pricier than about 89% 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 1.1 V registered DDR5 modules run significantly hotter than lower-voltage memory when the server operates continuously?

These DDR5 RDIMMs operate at the standard 1.1 V DDR5 voltage. Registered buffering and ECC add minimal overhead, so sustained thermal load is comparable to other 4800 MT/s server modules.

Does the ASUS RS700A-E12-RS12U server need any specific BIOS version or firmware update before installing this 12-module kit?

The kit is validated for the ASUS RS700A-E12-RS12U platform. Installation follows the server's documented memory population rules; no extra hardware is required beyond the system itself.

Can I keep existing 128 GB DDR5 4800 4Rx4 RDIMMs in the other channels while adding this 12-module kit?

Yes, provided the installed modules match DDR5 4800, ECC, registered, 4Rx4, 1.1 V specifications. Mixing identical rank and speed configurations maintains stability across all channels.

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