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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM RS720-E11-RS12U 128GB (4x32GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-Q01C-N0787 MPN RS720-E11-RS12U

128 GB DDR5 4800 ECC registered server kit in four 32 GB modules at CL40 1.1 V for ASUS RS720-E11-RS12U

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128GB capacity across four 32GB modules
  • DDR5 4800 speed for high bandwidth
  • ECC registered design protects data integrity
  • 1V operation reduces power draw
  • Validated for ASUS RS720-E11-RS12U server

System-specific DDR5 server memory

This 128GB kit contains four 32GB DDR5 4800 ECC RDIMM modules built for the ASUS RS720-E11-RS12U 2U dual-socket server. Each stick runs at 1.1V with CL40 latency and uses a 1Rx4 registered design for signal integrity. The modules are validated for compatibility with that specific server model.

Suits administrators upgrading that exact ASUS

Buyers who need a different capacity, speed or form factor should look elsewhere because this kit is tailored to one server model. Systems that require unbuffered UDIMMs or non-ECC memory cannot use these registered ECC modules.

DDR5 4800 PC5-38400 registered ECC specification

The decisive figure is the DDR5 4800 (PC5-38400) registered ECC RDIMM standard with 1Rx4 organisation and 1.1V operation. Only platforms that explicitly support this exact memory type will accept the kit.

How it compares

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

Price $3,233.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $25.27 per GB
Pricier than about 70% 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 numberMR38400-314K4
Total capacity128 GB (4 × 32 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 rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items128 GB (4 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How do I verify the kit is running at DDR5 4800 CL40 1.10 V after installation?

Enter the server BIOS or use a hardware monitor to confirm the memory speed shows 4800 MT/s, CAS latency 40 and voltage 1.10 V across all four modules.

What ships in the box and is anything else required to reach 128 GB?

The box contains four 32 GB 288-pin DDR5 RDIMM modules for a total of 128 GB; no extra parts are needed for this capacity.

Which version of this kit should I choose for the ASUS RS720-E11-RS12U 2U dual-socket server?

Select the RS720-E11-RS12U part number MR38400-314K4 — it is built for that exact server model.

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