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Six green DDR5 RDIMM modules in static bags

NEMIX RAM

NEMIX RAM RS720A-E12-RS24U 384GB (6x64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-E9K3-10YJS MPN RS720A-E12-RS24U

384 GB DDR5 ECC registered server memory kit, six 64 GB modules at 4800 MT/s CL40 for ASUS RS720A-E12-RS24U

  • Total capacity384 GB (6 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 384 GB total capacity with six 64 GB modules
  • DDR5 4800 speed for high-throughput server workloads
  • ECC registered design detects and corrects data errors
  • 10 V operation reduces power draw per module
  • Validated for ASUS RS720A-E12-RS24U 2U dual-processor server

384 GB DDR5 ECC RDIMM kit

This 384 GB kit contains six 64 GB DDR5 4800 registered DIMMs with ECC and CL40 latency. It is built for the ASUS RS720A-E12-RS24U dual-processor 2U server. Modules run at 1.10 V and use a 2Rx4 organisation on 288-pin sockets.

Who this suits and who should look elsewhere

IT teams upgrading the named ASUS 2U server to its full 384 GB capacity will find a matched, stress-tested set. Buyers needing memory for a different platform, a workstation, or a desktop should look elsewhere because the modules are validated only for this specific server model.

Registered DDR5 with ECC

The decisive specification is registered DDR5 with on-die ECC at 4800 MT/s. Only systems that accept 288-pin RDIMMs at this speed and voltage will POST reliably with this kit.

How it compares

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

Price $10,092.99
Pricier than about 87% of the 21,161 comparable items (median $397.99).
Total capacity 384 GB (6 × 64 GB)
Higher than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $26.28 per GB
Pricier than about 72% 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 numberMR38400-924K6
Total capacity384 GB (6 × 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 items384 GB (6 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What does the 4800 MT/s rating mean when the kit is installed in the ASUS RS720A-E12-RS24U server?

The modules run at DDR5 4800 speed with CL40 latency, delivering PC5-38400 bandwidth across the six 64 GB RDIMMs for a total of 384 GB of registered ECC capacity.

How does the DDR5 RDIMM interface and registered design affect usable performance in this 2U dual-processor system?

Registered DDR5 RDIMMs buffer address and command signals, allowing the memory controller to drive all six 2Rx4 modules at 1.1 V while maintaining ECC error correction across the full 384 GB kit.

What physical slot requirements must the chassis meet to accept these 288-pin modules?

The kit uses standard 288-pin DDR5 RDIMM form factor; the server must provide six compatible DIMM slots with the correct keying for registered ECC modules.

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