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Sixteen green DDR5 RDIMM modules in anti-static packaging

NEMIX RAM

NEMIX RAM RS720-E11-RS12U 2TB (16 x 128GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-88Z2-219AA MPN RS720-E11-RS12U

Registered ECC DDR5 server memory kit delivering 2TB across sixteen 128GB modules at 4800MHz CL40 for the ASUS RS720-E11-RS12U 2U platform

  • Total capacity2 TB (16 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Massive 2TB capacity from 16 x 128GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth
  • ECC registered design prevents data corruption
  • 1V operation reduces server power draw
  • Validated for ASUS RS720-E11-RS12U 2U dual-socket server

Target server and workload fit

This 2 TB kit is built for the ASUS RS720-E11-RS12U 2U dual-socket server. It suits administrators who need maximum registered ECC capacity for virtualization, databases or high-performance computing. Buyers running consumer motherboards, workstations without RDIMM support or systems limited to lower densities should look elsewhere.

Deciding specification: 4Rx4 registered ECC

The modules use a 4Rx4 architecture with on-die ECC and registered buffering at 1.1 V. This organization is required for the RS720-E11-RS12U memory controller to address the full 2 TB across sixteen slots. If the target platform expects a different rank configuration or unbuffered DIMMs, the kit will not function.

How it compares

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

Price $64,504.99
Pricier than about 98% of the 21,161 comparable items (median $397.99).
Total capacity 2 TB (16 × 128 GB)
Higher than about 99% of the 20,941 comparable items (median 32 GB).
Price per GB $32.25 per GB
Pricier than about 90% 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 numberMR38400-744K16
Total capacity2 TB (16 × 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 items2 TB (16 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will the 16 individual 128GB modules require any periodic replacement or maintenance after installation?

No, the registered ECC DDR5 modules are solid-state components with no moving parts and are designed to operate for the life of the server without scheduled replacement.

What thermal or power limit is reached first when the kit runs at the full 4800 MT/s speed continuously?

Each module operates at the standard 1.10 V DDR5 voltage; the registered design and ECC functionality manage signal integrity at speed without exceeding the JEDEC power envelope.

How much heat and noise does the 2TB kit produce when the server runs all day under load?

The modules have no integrated heat spreaders or fans, so they add negligible acoustic noise and rely on the server chassis airflow for cooling at 1.10 V.

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