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Twelve green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM RS720-E11-RS24U 768GB 12x64GB DDR5 4800 ECC RDIMM memory upgrade

SKU CH-HWVC-ZPWSQ MPN RS720-E11-RS24U

A 768 GB DDR5 4800 ECC registered server memory kit with twelve 64 GB modules for the ASUS RS720-E11-RS24U 2U dual-socket server

  • Total capacity768 GB (12 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 768 GB total capacity from twelve 64 GB modules
  • DDR5 4800 MT/s speed rated at PC5-38400
  • ECC registered design detects and corrects data errors
  • Low 1.10 V operating voltage reduces power draw
  • Validated for ASUS RS720-E11-RS24U 2U dual-socket server

768GB DDR5 ECC RDIMM kit

This 12-module kit delivers 768GB of DDR5 4800 registered ECC memory for the ASUS RS720-E11-RS24U 2U dual-socket server. Each 64GB module operates at 1.1V with CL40 latency and a 2Rx4 organisation. The 288-pin RDIMM form factor fits the platform's registered DIMM slots.

Sustained load behaviour

Registered buffering and on-die ECC maintain data integrity during continuous enterprise workloads such as virtualisation, database processing and high-performance computing. The 1.1V operating voltage helps limit thermal output when all twelve slots are populated under prolonged utilisation.

DDR5 4800 interface limits

The PC5-38400 standard caps transfer rates at 4800 MT/s per module, so total bandwidth scales with the number of populated channels on the motherboard. CL40 timing sets the minimum latency floor for random access patterns. Registered signalling adds one clock cycle of command delay compared with unbuffered modules.

How it compares

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

Price $20,512.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (12 × 64 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $26.71 per GB
Pricier than about 74% 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 numberMR38400-924K12
Total capacity768 GB (12 × 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 items768 GB (12 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How much power does the 12-module kit draw at the rated 1.10 V when the server runs continuously?

Each module operates at 1.10 V; total power depends on the server's memory controller load and cannot be derived from the module voltage alone.

What must the ASUS RS720-E11-RS24U motherboard provide for these modules to function?

The board needs 12 DDR5 RDIMM slots, support for 2Rx4 registered ECC DIMMs at 4800 MT/s, and a BIOS that recognises the 768 GB capacity.

Will the CL40 latency of these DDR5 RDIMMs slow down older DDR5 modules already installed in the server?

The memory controller runs all populated channels at the lowest common speed and latency, so adding CL40 modules will match the tighter timing if slower sticks are present.

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