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Twelve green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM RS720-E11-RS24U 384GB (12x32GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-B0JR-K5AWZ MPN RS720-E11-RS24U

12-module 384GB DDR5 ECC RDIMM kit at 4800MHz CL40 for ASUS RS720-E11-RS24U servers

  • Total capacity384 GB (12 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Massive 384GB capacity handles extreme workloads
  • 12 modules of 32GB each fill every slot
  • DDR5 4800 speed moves data fast
  • ECC registered design protects data integrity
  • Built for ASUS RS720-E11-RS24U server

384GB DDR5 4800 ECC RDIMM Server Kit

This 384GB kit contains twelve 32GB DDR5 4800 registered DIMMs built for the ASUS RS720-E11-RS24U 2U dual-socket server. ECC and registered buffering protect data integrity under continuous workloads. The modules run at 1.1V with CL40 latency and use major OEM DRAM from Samsung, Micron or Hynix.

Who This Suits and Who It Does Not

IT teams upgrading the named ASUS server to its maximum supported capacity will find a matched, stress-tested set that installs in minutes. Buyers who need a different capacity, a different form factor or compatibility with another platform should look elsewhere.

Deciding Specification: 12x32GB DDR5 4800

The single figure that decides fitment is the twelve-module 32GB DDR5 4800 registered ECC configuration. Only systems that accept twelve 288-pin RDIMMs at this speed and voltage can use the kit. Verify the server memory list before purchase.

How it compares

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

Price $10,183.99
Pricier than about 87% 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 $26.52 per GB
Pricier than about 73% 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 numberMR38400-314K12
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

How do I install the 12 DDR5 RDIMM modules into the ASUS RS720-E11-RS24U server, and which step is most often missed?

Power down the server and open the chassis. Populate all 12 DIMM slots following the motherboard's channel population guide — usually alternating CPU sockets. The step most often missed is locking both ejector clips on every module until they click, ensuring full contact.

What maintenance or replacement will this 384GB DDR5 ECC registered kit need over its service life?

The modules have no heat spreaders and no moving parts, so routine maintenance is limited to keeping server airflow paths clean. If a module fails, the ECC function will log correctable errors; replace the faulty 32GB RDIMM individually — no kit-level swap is required.

What is the first limit reached when this memory runs at 4800 MT/s CL40 under sustained load?

The primary limit is the JEDEC-standard 1.10 V operating voltage combined with CL40 latency; sustained heavy workloads will hit the bandwidth ceiling of PC5-38400 before thermal throttling becomes an issue, since the RDIMMs run without heat spreaders in a forced-air server chassis.

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