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Twelve green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM RS720-E11-RS12U 768GB (12x64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-5TAJ-C6K59 MPN RS720-E11-RS12U

12-module 768GB DDR5-4800 ECC registered kit with CL40 latency and 1.1V operation for ASUS RS720-E11-RS12U servers

  • 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 RDIMM for server data integrity
  • CL40 CAS latency at 1.10 V operating voltage
  • 288-pin 2Rx4 design built for ASUS RS720-E11-RS12U

Targeted Server Upgrade

This 768GB kit delivers twelve 64GB DDR5 4800 ECC registered DIMMs built for the ASUS RS720-E11-RS12U 2U dual-socket server. It addresses administrators who need maximum registered capacity in a validated configuration.

Registered ECC Construction

Each module uses a 2Rx4 organisation at 1.10V with a 288-pin DDR5 RDIMM interface and CL40 timing. The registered buffer and ECC logic reduce electrical load on the memory controller while correcting single-bit errors during continuous operation.

DDR5 4800 Platform Limit

The PC5-38400 speed rating matches the current DDR5 4800 standard supported by the target platform. Systems requiring higher data rates or different voltage profiles cannot use this kit without a platform change.

How it compares

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

Price $21,002.99
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 $27.35 per GB
Pricier than about 76% 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

What speed does the DDR5 4800 standard cap at for this 12-module kit?

The kit runs at DDR5 4800 (PC5-38400) with CL40 latency across all twelve 64 GB modules.

What physical slot and form factor do these 288-pin RDIMMs require?

Each module is a 288-pin DDR5 RDIMM measuring 2Rx4 rank; the server must provide twelve DDR5 RDIMM slots.

How are the twelve modules installed in the ASUS RS720-E11-RS12U and what step is often missed?

Populate all twelve slots following the motherboard's channel population guide; the step often missed is matching the 2Rx4 rank layout per channel.

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