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Two green 288-pin DDR5 RDIMM modules, no heat spreader

NEMIX RAM

NEMIX RAM RS720-E11-RS12U 128GB (2x64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-S7VQ-68PD8 MPN RS720-E11-RS12U

128 GB DDR5 server memory kit, two 64 GB registered ECC modules at 4800 MT/s CL40 for ASUS RS720-E11-RS12U systems

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB DDR5 capacity handles heavy server workloads
  • ECC registered design protects data integrity under load
  • 4800 MT/s speed with CL40 latency delivers responsive throughput
  • 1 V operation reduces power draw in dense configurations
  • Validated for ASUS RS720-E11-RS12U 2U dual-socket servers

Server Memory Kit

This NEMIX RAM kit supplies 128 GB of DDR5 ECC registered memory in a matched pair of 64 GB modules. It is built for IT professionals who manage ASUS dual-socket 2U servers and need validated compatibility for mission-critical workloads. The modules install directly into 288-pin RDIMM slots without additional configuration steps.

Registered ECC DDR5 4800

Each module runs at DDR5 4800 (PC5-38400) with a CAS latency of CL40 and operates at 1.1 V. The 2Rx4 registered design adds a buffer that stabilises signal integrity across fully populated server boards. ECC circuitry corrects single-bit errors to maintain data integrity under sustained load.

Thermals and Power

Bare modules without heat spreaders rely on the server chassis airflow for cooling, which is standard for 2U rack environments. The low 1.1 V operating voltage keeps power draw modest per DIMM, reducing thermal load on the memory subsystem. Silent operation is assured because no active cooling components are attached to the sticks.

How it compares

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

Price $3,055.99
Pricier than about 73% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $23.87 per GB
Pricier than about 69% 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 numberMR38400-924K2
Total capacity128 GB (2 × 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 items128 GB (2 × 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 does the 4800 MT/s speed mean when the modules are installed in the RS720-E11-RS12U?

The kit runs at DDR5 4800 MT/s (PC5-38400) once populated in the server, delivering the rated data rate for each 64 GB module.

How does the 288-pin RDIMM interface limit the memory configuration?

The 288-pin DDR5 RDIMM form factor fits only registered DIMM slots on the ASUS RS720-E11-RS12U motherboard and requires ECC RDIMM support.

What physical space and power do the two 64 GB sticks need to fit the server?

Each module is a standard 288-pin DDR5 RDIMM operating at 1.1 V; the kit occupies two DIMM slots and uses the 2Rx4 rank layout.

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