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Four green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 4800 ECC RDIMM ASUS Server memory upgrade

SKU CH-SNKS-KP7DC

128 GB DDR5 4800 ECC registered server kit with four 32 GB modules for ASUS boards

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB total capacity across four 32 GB modules
  • DDR5 4800 speed rated at PC5-38400 for high throughput
  • ECC registered design protects data integrity in servers
  • 10 V operation reduces power draw per module
  • Validated for ASUS S14NA-U12 server board compatibility

128GB DDR5 ECC RDIMM kit for ASUS servers

This 128GB kit contains four 32GB registered DDR5 modules built for ASUS server boards such as the S14NA-U12. It targets administrators who need validated, error-correcting memory for mission-critical workloads. Each module runs at 1.10V and carries a CL40 latency rating.

Registered ECC with 1Rx4 organisation

The modules are registered DDR5 RDIMMs with on-die ECC and a 1Rx4 rank structure. This combination provides the signal integrity and error detection required by multi-socket server platforms. The 288-pin form factor matches the DDR5 slots on the qualified ASUS motherboard.

128GB total capacity at DDR5-4800

The kit delivers 128GB of bandwidth at 4800 MT/s (PC5-38400), suitable for virtualisation, database caching and high-thread-count compute. Workloads that exceed 128GB or demand speeds beyond 4800 MT/s will require additional DIMM slots or faster-rated modules.

How it compares

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

Price $3,833.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $29.95 per GB
Pricier than about 85% 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 numberMR38400-314K4
Total capacity128 GB (4 × 32 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 rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items128 GB (4 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What does the 4800 MT/s speed mean once the kit is installed in an ASUS S14NA-U12 server?

The modules run at DDR5 4800 MT/s, delivering PC5 38400 bandwidth per module; the server's memory controller determines the final operating speed based on how many DIMM slots are populated.

How does the PC5 38400 rating limit real-world throughput?

PC5 38400 defines the module's maximum data rate at 4800 MT/s; sustained throughput is governed by the ASUS server's memory-channel configuration and the registered ECC protocol overhead.

What physical clearance does the 288-pin RDIMM kit need inside the chassis?

Each 32 GB stick is a standard-height 288-pin DDR5 RDIMM without a heat spreader, so it fits any ASUS S14NA-U12 DIMM slot that accepts registered ECC modules.

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