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Twelve green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM RS720QA-E12-RS8U 384GB (12x32GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-YMWZ-Q9HM6 MPN RS720QA-E12-RS8U

384 GB DDR5 4800 ECC registered kit with twelve 32 GB 1Rx4 modules at 1.1 V CL40 for the ASUS RS720QA-E12-RS8U server

  • Total capacity384 GB (12 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 384 GB total capacity from twelve 32 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design protects data integrity
  • Low 1.10 V operation reduces power draw
  • Validated for ASUS RS720QA-E12-RS8U 2U4N rack server

Compatible ASUS RS720QA server memory kit

This NEMIX RAM kit provides 384 GB of DDR5 4800 registered ECC memory in a twelve-module configuration. Each 32 GB module operates at 1.10 V with CL40 latency and a 1Rx4 organisation. The 288-pin RDIMM form factor matches the ASUS RS720QA-E12-RS8U high-density 2U4N rack server. Modules use major OEM Samsung, Micron or Hynix components.

Suited for dense ASUS rack deployments

This kit targets administrators expanding the ASUS RS720QA-E12-RS8U platform to its supported memory ceiling. The registered ECC design delivers the error correction and signal integrity required for multi-node workloads. Buyers who need a different capacity per module, a lower speed grade or non-registered DIMMs should look at other NEMIX RAM listings that match their motherboard qualification list.

1Rx4 rank organisation drives density

The twelve 1Rx4 modules combine to 384 GB while keeping electrical loading within the platform limits. This rank layout is the specific parameter the ASUS RS720QA memory controller expects for full population. Selecting a dual-rank or quad-rank alternative would alter the loading profile and could prevent the server from completing POST or running stable under load.

How it compares

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

Price $10,493.99
Pricier than about 88% of the 21,161 comparable items (median $397.99).
Total capacity 384 GB (12 × 32 GB)
Higher than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $27.33 per GB
Pricier than about 76% 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 lineASUS Server Motherboard Compatible Series Memory
Model nameASUS DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-314K12
Total capacity384 GB (12 × 32 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 rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items384 GB (12 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I pick the 12-module 384GB kit or a smaller capacity for the RS720QA-E12-RS8U?

The 384GB kit provides twelve 32GB modules to fill every slot in the ASUS RS720QA-E12-RS8U 2U4N rack server, delivering maximum registered ECC capacity for dense virtualization or database workloads.

What does DDR5 4800 PC5-38400 actually deliver inside this server?

Each 32GB module runs at 4800 MT/s with CL40 latency at 1.1V, giving the RS720QA-E12-RS8U a peak bandwidth of 38400 MB/s per module for high-throughput server tasks.

How does the 288-pin DDR5 RDIMM interface limit performance in practice?

The registered 288-pin DDR5 RDIMM form factor caps each stick at 4800 MT/s and CL40, so total system throughput scales with the twelve populated channels rather than per-module speed.

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