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Twelve green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM RS700A-E12-RS12U 768GB (12x64GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-EW3R-DJYQ4 MPN RS700A-E12-RS12U

Provides 768GB of DDR5 4800 ECC registered server memory in a 12-module kit validated for the ASUS RS700A-E12-RS12U 1U dual-processor platform

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Massive 768GB capacity with twelve 64GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design protects data integrity
  • Low 1.10V operation reduces server power draw
  • Validated for ASUS RS700A-E12-RS12U 1U dual-processor systems

System-specific DDR5 kit

This 768GB kit contains twelve 64GB DDR5 4800 registered DIMMs built for the ASUS RS700A-E12-RS12U dual-processor 1U server. IT teams and system integrators use it to maximise memory capacity in that specific platform.

DDR5 4800 registered ECC constraints

Registered DIMMs with on-die ECC require a motherboard chipset and BIOS that support registered operation and the PC5-38400 data rate; consumer boards and unbuffered slots will not accept these modules. The 1.1V operating voltage is fixed by the DDR5 specification for this speed grade.

12 x 64GB 2Rx4 population

The kit fills all twelve slots with dual-rank 2Rx4 modules, delivering the maximum supported capacity per channel for this server model. Buyers needing fewer modules or a different rank configuration must select another part number.

How it compares

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

Price $19,563.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (12 × 64 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $25.47 per GB
Pricier than about 70% 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 numberMR38400-924K12
Total capacity768 GB (12 × 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
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items768 GB (12 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Which capacity kit should I choose for the ASUS RS700A-E12-RS12U server?

The kit provides 768 GB total using 12 modules of 64 GB each, matching the 12-slot population for this model.

What does DDR5 4800 mean for actual throughput in this system?

The modules run at 4800 MT/s with CL40 latency and 1.10 V, giving the rated PC5-38400 data rate when all 12 slots are filled.

What does the 288-pin ECC RDIMM interface cap in practice?

The 288-pin DDR5 RDIMM form factor with 2Rx4 organisation and registered ECC is the physical and electrical limit for this server platform.

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