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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM RS720QA-E12-RS8U 512GB (8×64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-T2GF-DZM7X MPN RS720QA-E12-RS8U

Eight 64 GB DDR5 4800 CL40 ECC RDIMM modules totalling 512 GB, validated for ASUS RS720QA-E12-RS8U rack servers

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 512GB total capacity scales memory-heavy server workloads
  • DDR5 4800 speed feeds data to multi-core CPUs efficiently
  • ECC registered design corrects errors for continuous uptime
  • 1V operation reduces power draw per 64GB module
  • 288-pin RDIMM form factor fits ASUS RS720QA-E12-RS8U servers

Targeted server upgrade

This 512GB kit provides eight 64GB DDR5 4800 CL40 ECC registered DIMMs built for the ASUS RS720QA-E12-RS8U 2U4N rack server. It delivers registered error-correcting memory at 1.10V for mission-critical workloads.

Build integration

The modules use the standard 288-pin DDR5 RDIMM form factor and 2Rx4 organisation, so they occupy all available slots in the validated server platform. Registered buffering reduces electrical load on the memory controller, freeing signal integrity for dense multi-node configurations.

Ideal fit and limits

Suited for IT teams expanding memory capacity in the named ASUS high-density rack server where ECC and registered operation are required. Not suited for desktop boards, consumer workstations, or any system that accepts only unbuffered non-ECC DDR5 modules.

How it compares

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

Price $14,540.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $28.40 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 numberMR38400-924K8
Total capacity512 GB (8 × 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 items512 GB (8 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the CL40 latency become the bottleneck during sustained workloads?

The CL40 latency is the rated timing at DDR5 4800 speed; sustained workloads run at this specification without additional latency penalties.

How much heat and power should I expect from the eight modules running continuously?

Each module operates at 1.10 volts with no heat spreader, so total power draw is low and cooling relies on server chassis airflow over the bare PCBs.

Which server chassis and motherboard must I already have for this kit to function?

The kit is validated for the ASUS RS720QA-E12-RS8U 2U4N rack server; the motherboard must provide 288-pin DDR5 RDIMM slots with registered ECC support.

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