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NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR5 4800 ECC RDIMM KIT ASUS K14PA-U12 EPYC 9004

SKU CH-8SP5-91759

512 GB DDR5 ECC registered server memory kit with four 128 GB modules at 4800 MT/s, CL40, 1.1 V for ASUS K14PA-U12 EPYC 9004 platforms

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Massive 512 GB capacity powers dense virtualization
  • DDR5 4800 MT/s bandwidth feeds 128-core EPYC throughput
  • ECC registered design protects mission-critical data integrity
  • 1 V operation lowers server power envelope
  • Validated for ASUS K14PA-U12 EPYC 9004 platform

512GB DDR5 ECC RDIMM kit for ASUS K14PA-U12

This 512GB kit contains four 128GB DDR5 4800 registered ECC modules built for the ASUS K14PA-U12 motherboard and AMD EPYC 9004 processors. It targets IT teams who need maximum registered capacity in a validated configuration. The quad-rank 4Rx4 organisation and 1.1V operation match the platform's registered memory requirements.

Installation follows standard RDIMM procedure

Modules insert into the 288-pin DDR5 slots and lock with the board's retention clips. No heat spreaders are fitted, so clearance is minimal, but the registered buffer adds electrical load that the memory controller must support. Builders should verify the motherboard's qualified vendor list and populate all four channels for the rated 4800MT/s speed; mixing ranks or speeds will drop the link rate.

Four 128GB modules deliver 512GB of registered ECC

The kit handles large virtualisation clusters, in-memory databases and heavy container workloads that benefit from full-channel population. Headroom ends when the platform's maximum registered DIMM count or total memory limit is reached, or when workloads demand speeds above 4800MT/s or lower latency than CL40.

How it compares

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

Price $14,792.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $28.89 per GB
Pricier than about 82% 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 numberMR38400-744K4
Total capacity512 GB (4 × 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 items512 GB (4 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How can I confirm the kit is running at DDR5 4800 with CL40 after installation?

Enter the system BIOS or use a tool such as CPU-Z to verify the memory frequency reads 4800 MT/s and the CAS latency shows CL40 at 1.10 V.

What exactly ships in the box and is any extra hardware required?

The package contains four 128 GB DDR5 4800 ECC RDIMM modules (288-pin, 4Rx4) for a total of 512 GB; no additional parts are needed for installation.

Which capacity or rank option should I select for an ASUS K14PA-U12 with EPYC 9004?

This kit provides the full 512 GB (4 x 128 GB, 4Rx4) configuration validated for that motherboard and processor combination.

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