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Two green 288-pin DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 4800 ECC RDIMM CL40 1.1V 2Rx4 ASUS S14NA-U12 memory upgrade

SKU CH-CRDH-VSWGK

Dual-rank 128 GB DDR5 4800 ECC RDIMM kit with CL40 latency for ASUS S14NA-U12 servers

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB capacity supports demanding server workloads
  • DDR5 4800 speed delivers high data throughput
  • ECC registered design protects data integrity
  • 1 V operation reduces power consumption
  • Validated for ASUS S14NA-U12 motherboard compatibility

ASUS S14NA-U12 DDR5 ECC RDIMM kit

This 128GB kit contains two 64GB registered DDR5 modules validated for the ASUS S14NA-U12 server board. ECC and registered signalling protect data integrity in multi-socket and virtualised workloads. The modules run at 4800 MT/s with CL40 latency at 1.10V.

Replaces slower or smaller DDR5 RDIMMs

Upgrading from lower-capacity or lower-speed registered DDR5 is worthwhile when memory bandwidth or total capacity limits database, virtualisation or HPC throughput. The 2Rx4 organisation doubles rank density per channel compared with single-rank alternatives.

Fits 288-pin DDR5 RDIMM slots on the S14NA-U12

No heat spreader is fitted, so airflow across the PCB must be provided by the server chassis. The kit frees DIMM slots for future expansion while delivering the full 128GB in a two-module configuration.

How it compares

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

Price $3,621.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $28.30 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 numberMR38400-924K2
Total capacity128 GB (2 × 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 items128 GB (2 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the 288-pin DDR5 RDIMM form factor fit the ASUS S14NA-U12 server board?

Yes, the kit uses the 288-pin DDR5 RDIMM form factor that matches the memory slots on the ASUS S14NA-U12 server board.

How do I install the two 64 GB modules and what step is often missed?

Power off the server, open the chassis, align each module notch with the slot key, press firmly until both retention clips click, then verify in BIOS that both 64 GB modules are detected at 4800 MT/s.

When should the ECC RDIMM modules be replaced in a 24/7 server?

Replace modules if ECC corrected-error counters rise sharply, if the system logs uncorrectable memory errors, or if stress testing shows instability after years of continuous operation.

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