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Eight green 288-pin DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 512GB (8×64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-EDB7-NEFNQ

Eight 64 GB DDR5 4800 CL40 ECC registered DIMMs add 512 GB to ASUS S14NA-U12 servers

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 512 GB total capacity across eight 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design detects and corrects data errors
  • 1 V operating voltage for efficient server operation
  • Validated for ASUS S14NA-U12 server board compatibility

Server Memory Upgrade

This 512 GB kit provides eight 64 GB DDR5 4800 registered ECC RDIMMs for the ASUS S14NA-U12 server board. It targets administrators who need maximum registered capacity in a single validated package.

Thermals and Power

Modules run at 1.1 V without heat spreaders, relying on server chassis airflow for cooling. Registered buffering and ECC add minimal overhead while maintaining signal integrity under sustained load.

Capacity and Compatibility

The 512 GB total across eight slots is the deciding factor; the board must support 64 GB RDIMMs per channel to use this kit. Systems limited to lower per-slot densities cannot accept these modules.

How it compares

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

Price $13,132.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $25.65 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 numberMR38400-924K8
Total capacity512 GB (8 × 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 items512 GB (8 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How do I install the 288-pin DDR5 RDIMM modules into the ASUS S14NA-U12 server board?

Power down the server, open the chassis, align each 288-pin DDR5 RDIMM with the keyed slot, press firmly until the retention clips click, then populate all eight channels per the board's memory population guide.

Will the Samsung, Micron or Hynix DRAM chips on these 64 GB modules require any firmware updates or periodic replacement?

The major OEM DRAM chips are solid-state with no moving parts and no firmware; they do not need updates or scheduled replacement under normal server operation.

At what point does the CL40 latency at 4800 MT/s become the bottleneck during sustained workloads?

Under continuous heavy load the fixed CL40 timing at 4800 MT/s limits memory throughput before thermal or voltage constraints appear.

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