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Six green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM RS720A-E12-RS12 768GB (6x128GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-YZNN-C6JT7 MPN RS720A-E12-RS12

Provides 768 GB of DDR5 4800 ECC registered memory in six 128 GB modules for compatible ASUS servers

  • Total capacity768 GB (6 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Massive 768 GB capacity from six 128 GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth
  • ECC registered design protects data integrity
  • Low 1.1 V voltage reduces power draw
  • Validated for ASUS RS720A-E12-RS12 server compatibility

768GB DDR5 ECC RDIMM kit for ASUS servers

This NEMIX RAM kit provides 768GB of DDR5 4800 registered ECC memory in six 128GB modules. It is built for the ASUS RS720A-E12-RS12 dual-processor server and operates at 1.1V with CL40 latency. The 288-pin RDIMM design uses 4Rx4 organisation for high-density capacity.

Who this suits and who it does not

IT teams upgrading compatible ASUS 2U servers to the maximum supported memory will find this matched kit straightforward to deploy. Buyers needing non-ECC UDIMM modules for workstations or consumer motherboards cannot use this registered server memory. Systems limited to lower speeds or different form factors should select alternative modules.

The specification that decides fit

The modules run at DDR5 4800 (PC5-38400) with CL40 timing and 1.1V voltage as a registered ECC RDIMM. If the target server requires a different speed, voltage, rank configuration or unbuffered memory, this kit will not function correctly.

How it compares

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

Price $21,341.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (6 × 128 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $27.79 per GB
Pricier than about 78% 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 numberMR38400-744K6
Total capacity768 GB (6 × 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 items768 GB (6 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the 768GB kit ship as six 128GB modules or do I need to buy extra sticks?

The kit contains six 128GB DDR5 RDIMM modules, giving 768GB total; no additional sticks are required.

Should I choose this CL40 4800MHz kit or a lower-latency option for the ASUS RS720A-E12-RS12?

This CL40 kit is validated for the ASUS RS720A-E12-RS12; lower-latency modules may not be qualified for that platform.

Will the advertised 4800MHz speed actually run at 4800MHz once installed in the RS720A-E12-RS12?

The modules are rated PC5-38400 at 4800MHz and are tested for compatibility with the RS720A-E12-RS12, so they will operate at that speed.

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