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Green circuit board with black memory chips, gold edge connector, no heat spreader

NEMIX RAM

NEMIX RAM 64GB DDR5 4800 PC5-38400 2Rx4 1.1V CL40 288-Pin ECC RDIMM for RS720-E11-RS12U memory upgrade

SKU CH-VN3D-PFHW9 MPN RS720-E11-RS12U

64 GB DDR5 4800 ECC RDIMM registered server memory for ASUS RS720-E11-RS12U

  • Total capacity64 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64GB capacity handles heavy server workloads
  • DDR5 4800 speed delivers high memory bandwidth
  • ECC registered design protects data integrity
  • 1V operation reduces power consumption
  • 288-pin RDIMM fits ASUS RS720-E11-RS12U systems

Server Memory Upgrade

This 64GB DDR5 module is built for the ASUS RS720-E11-RS12U 2U dual-socket server. It delivers registered ECC operation at 4800MHz with a CL40 latency profile. The single DIMM format suits administrators expanding capacity in mission-critical environments.

Registered ECC Stability

Registered signalling and on-die ECC protect data integrity across heavy workloads. The 2Rx4 organisation and 1.1V voltage align with the platform memory controller requirements. No heat spreader is fitted, relying on chassis airflow for thermal management.

288-Pin RDIMM Form Factor

The standard 288-pin DDR5 RDIMM keying ensures correct insertion in compatible server slots. Samsung, Micron or Hynix major-OEM chips provide supply-chain consistency. Buyers needing non-ECC unbuffered memory or desktop SO-DIMM modules should look elsewhere.

How it compares

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

Price $1,674.99
Pricier than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $26.17 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 numberMR38400-924K1
Total capacity64 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 items64 GB (1 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will the 2Rx4 DDR5 RDIMM need any firmware updates or component swaps during its service life?

The module is a standard JEDEC DDR5 4800 2Rx4 registered DIMM; no firmware updates or component replacements are required once it is installed in the ASUS RS720-E11-RS12U server.

What limit appears first when the 64 GB module runs at 4800 MT/s continuously in a 2U chassis?

The primary limit is thermal — the module has no heat spreader and operates at 1.10 V, so sustained full-speed loads are constrained by the server's airflow and DIMM-slot cooling capacity.

How much power does the 1.10 V 64 GB DDR5 RDIMM draw and how hot does it get under all-day load?

At 1.10 V the module draws roughly 8–10 W typical; without a heat spreader it relies on chassis airflow, so DIMM temperatures will track the server's inlet temperature plus the local airflow rise.

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