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Four green DDR5 RDIMM modules with gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR5 4800 CL40 ECC RDIMM RS720QA-E12-RS8U memory upgrade

SKU CH-M48Z-QWBHJ MPN RS720QA-E12-RS8U

256 GB DDR5 ECC registered server kit with four 64 GB modules at 4800 MT/s CL40 for ASUS RS720QA-E12-RS8U

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB total capacity across four 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 for high throughput
  • ECC registered RDIMM design protects data integrity in servers
  • 1 V operating voltage reduces power draw per module
  • 288-pin 2Rx4 layout matches ASUS RS720QA-E12-RS8U slot requirements

System-specific DDR5 ECC kit

This NEMIX RAM kit delivers 256GB of DDR5 4800 ECC registered memory in four 64GB modules. It is built for the ASUS RS720QA-E12-RS8U high-density 2U4N rack server and uses 288-pin RDIMMs with a CL40 latency and 1.10V operation. The modules are validated for that platform to ensure stability under sustained enterprise workloads.

Who this suits and who it does not

It suits administrators upgrading or populating the named ASUS server with matched, stress-tested ECC RDIMMs. It is not for systems that require unbuffered UDIMMs, non-ECC memory, lower-density modules, or a different DDR generation. Buyers needing a different pin count, voltage, or form factor should look elsewhere.

The specification that decides fit

The kit is qualified specifically for the ASUS RS720QA-E12-RS8U server; compatibility with any other platform is not guaranteed. Confirm the exact system model before ordering.

How it compares

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

Price $7,272.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $28.41 per GB
Pricier than about 80% 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 numberMR38400-924K4
Total capacity256 GB (4 × 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 items256 GB (4 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the 4800 CL40 DDR5 ECC RDIMM modules run with the existing DDR5 memory in my ASUS RS720QA-E12-RS8U server?

These modules are DDR5 4800 CL40 ECC Registered DIMMs built for the ASUS RS720QA-E12-RS8U. Mixing them with other DDR5 kits is possible if speed, voltage, rank and ECC type match, but the server will operate all memory at the lowest common settings.

How can I confirm the 256 GB kit is detected and running at 4800 MT/s after installation?

Enter the BIOS or UEFI on the RS720QA-E12-RS8U and check the memory information screen; it should show 256 GB total across four slots with a speed of 4800 MT/s and CL40 timings.

Does the RS720QA-E12-RS8U kit include heat spreaders or any extra cables?

The package contains only the four 64 GB 288-pin DDR5 RDIMM modules. No heat spreaders, cables or additional accessories are included.

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