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Four green DDR5 RDIMM sticks without heat spreaders, 288-pin, 512GB kit

NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR5 4800 ECC RDIMM CL40 1.1V 288-Pin Server Memory Upgrade

SKU CH-85E6-W14QY

A 512 GB DDR5 ECC registered kit of four 128 GB modules running at 4800 MT/s with CL40 latency, validated for ASUS Pro WS WRX90E SAGE SE workstations

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V

Capacity 512GB 4X128GB

Show 3 more
  • 512 GB capacity scales memory-intensive workloads across four 128 GB modules
  • DDR5 4800 speed delivers 38400 MT/s data rates for server throughput
  • ECC registered design detects and corrects errors to protect data integrity
  • 10 V operation reduces power draw in dense configurations
  • Validated for ASUS Pro WS WRX90E SAGE SE workstation motherboard

512GB DDR5 ECC RDIMM kit

This NEMIX RAM kit delivers 512GB of DDR5 4800 registered ECC memory across four 128GB modules. It is built for the ASUS Pro WS WRX90E SAGE SE workstation motherboard. The modules run at 1.1V with CL40 latency and a 4Rx4 organisation. They are designed for server and workstation workloads that demand data integrity and high capacity.

Who this suits and who it does not

This memory suits professionals upgrading the specified ASUS workstation for virtualisation, large datasets or compute-intensive tasks. It is not for builders using consumer desktop boards that only accept unbuffered non-ECC DIMMs. Buyers who need a different capacity, speed or form factor should look elsewhere.

The deciding specification

The kit is validated for the ASUS Pro WS WRX90E SAGE SE motherboard. That single compatibility fact determines whether the modules will post and run reliably in your system. If your board is not that exact model, the memory may not be supported.

How it compares

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

Price $14,770.99
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 $28.85 per GB
Pricier than about 81% 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

Other versions of this model

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Questions about this item

What bandwidth does the DDR5 4800 (PC5-38400) interface provide?

The kit is rated DDR5 4800, which corresponds to the PC5-38400 data-rate specification.

What motherboard slot and clearance do the 288-pin RDIMMs need?

Each module uses the standard 288-pin DDR5 RDIMM form factor and has no heat spreader, so it fits any DDR5 RDIMM slot with normal vertical clearance.

How are the four 128 GB sticks installed in the ASUS Pro WS WRX90E SAGE SE, and what step is often missed?

Populate the four designated RDIMM slots per the motherboard manual, seat each module until the retention clips click, and enable ECC in the BIOS — the last step is frequently overlooked.

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