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Twelve green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 1.5TB (12x128GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-8VB0-JV0WR

1.5 TB DDR5 registered ECC server memory kit with 12 modules of 128 GB at 4800 MT/s and CL40 latency

  • Total capacity1.5 TB (12 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 5 TB total capacity across twelve 128 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design detects and corrects data errors
  • 1 V operating voltage reduces server power draw
  • Validated for ASUS RS720Q-E11-IM immersion-cooled chassis

1.5TB DDR5 ECC RDIMM kit for ASUS servers

This 1.5TB kit contains twelve 128GB DDR5 registered DIMMs built for ASUS 2U4N high-density immersion-cooling servers. It targets IT professionals who need maximum memory capacity in a validated server configuration. The modules operate at 1.1V with CL40 latency and include on-die ECC for data integrity. Buyers needing non-ECC memory or consumer desktop DIMMs should look elsewhere.

4800MT/s PC5-38400 registered DDR5

The decisive specification is the DDR5 4800 registered ECC RDIMM format with 4Rx4 rank architecture. This combination determines compatibility with the ASUS RS720Q-E11-IM platform and similar qualified server boards. The 288-pin registered interface and on-die error correction are mandatory for the target system; unbuffered or non-ECC modules will not function in this environment.

128GB modules provide 1.5TB total across twelve

Twelve 128GB modules fill every available DIMM slot on the compatible ASUS server, delivering 1.5TB of addressable memory for virtualisation, in-memory databases and high-performance computing workloads. Capacity headroom ends when all twelve sockets are populated; further expansion requires a platform with additional memory channels or higher-density modules not included in this kit.

How it compares

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

Price $45,624.99
Pricier than about 95% of the 21,161 comparable items (median $397.99).
Total capacity 1.5 TB (12 × 128 GB)
Higher than about 97% of the 20,941 comparable items (median 32 GB).
Price per GB $30.42 per GB
Pricier than about 87% 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 numberMR38400-744K12
Total capacity1.5 TB (12 × 128 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 rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items1.5 TB (12 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What does the 4800 MT/s speed mean for actual throughput in this server?

The DDR5 4800 rating sets the maximum data rate each module can sustain; real-world throughput depends on the memory controller and workload.

How does the PC5-38400 designation limit performance in practice?

PC5-38400 confirms the 4800 MT/s transfer rate and defines the peak bandwidth envelope the platform cannot exceed.

Will the 288-pin 4Rx4 RDIMMs fit the ASUS RS720Q-E11-IM slots without clearance issues?

These 288-pin DDR5 RDIMMs match the server's DIMM sockets; the 4Rx4 organisation is supported by the platform.

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