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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 64GB (4x16GB) DDR5 4800 CL40 ECC RDIMM ASUS S14NA-U12 memory upgrade

SKU CH-RZ3K-ZNQJP

A 64 GB kit of four 16 GB DDR5 4800 CL40 ECC registered DIMMs validated for the ASUS S14NA-U12 server board

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • ECC protection prevents data errors in critical workloads
  • Registered design stabilises signal integrity for server boards
  • 64 GB kit (4 × 16 GB) expands capacity for virtualisation
  • DDR5 4800 CL40 at 1.10 V balances speed and efficiency
  • 288-pin RDIMM form factor fits ASUS S14NA-U12 slots

64 GB DDR5 ECC RDIMM kit for ASUS S14NA-U12

This NEMIX RAM kit delivers 64 GB of DDR5 4800 registered ECC memory in four 16 GB modules. It is built for the ASUS S14NA-U12 server board and runs at 1.1 V with CL40 latency. The 288-pin RDIMM form factor and 1Rx8 organisation suit enterprise workloads that require error correction and registered buffering.

Suited to administrators expanding the ASUS

The kit matches the board's qualified DDR5 4800 registered ECC specification, so it fits directly into the four available slots. Builders who need unbuffered UDIMM modules, non-ECC memory, or a different speed grade should look at other memory types because this product is registered ECC only.

Four matched modules simplify population

The package contains four identical 16 GB sticks, eliminating the need to mix capacities or ranks during installation. Pre-tested matching reduces the chance of timing mismatches and lets the server board initialise the full 64 GB array without manual configuration.

How it compares

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

Price $1,606.99
Pricier than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $25.11 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 numberMR38400-618K4
Total capacity64 GB (4 × 16 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 rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items64 GB (4 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What motherboard must I already have to install these four 16 GB DDR5 4800 CL40 ECC RDIMM modules?

They are validated for the ASUS S14NA-U12 server board; the board must support 288-pin DDR5 RDIMM slots and registered ECC memory at 1.1 V.

How do these 1.1 V registered DDR5 modules behave alongside older DDR5 DIMMs I keep in the same server?

All slots must run at the same voltage and speed; mixing different DDR5 speeds or ranks will force the system to the lowest common setting.

How can I confirm the kit is running at the rated 4800 MT/s and CL40 after installation?

Check the BIOS memory information or a tool such as CPU-Z to verify DDR5-4800 frequency and CAS latency 40 on all four modules.

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