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Green rectangular circuit board with black chips and gold edge connectors

NEMIX RAM

NEMIX RAM 128GB DDR5 6400 CL52 4Rx4 ECC RDIMM ASRock Rack W890D8-2L2T memory upgrade

SKU CH-ZWHV-M2VY4

A 128GB DDR5 ECC RDIMM running at 6400MHz with CL52 latency, registered for stability on the ASRock Rack W890D8-2L2T motherboard

  • Total capacity128 GB
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank4Rx4
  • 128GB capacity expands server memory for demanding workloads
  • DDR5 6400MHz speed delivers high bandwidth for data-intensive tasks
  • ECC registered design detects and corrects errors for reliability
  • CL52 latency at 1.1V balances performance with efficiency
  • Validated for ASRock Rack W890D8-2L2T motherboard compatibility

Server Memory Upgrade

This NEMIX RAM module provides 128GB of DDR5 ECC registered memory in a single 288-pin RDIMM. It is designed for the ASRock Rack W890D8-2L2T motherboard and targets administrators who need maximum capacity per slot for virtualization or database workloads.

Compatibility Check

Confirm that your W890D8-2L2T system supports 4Rx4 registered DIMMs at 6400MHz and that the BIOS is current enough for this density. The module operates at 1.1V, so the platform must supply that voltage without manual adjustment. Ensure an empty 288-pin DDR5 slot is available before ordering.

Build & Connectors

The stick uses major OEM chips from Samsung, Micron or Hynix and carries no heat spreader, relying on server chassis airflow for cooling. Its 288-pin RDIMM form factor seats directly into the motherboard slot with a single keyed connector, requiring no extra cables or brackets during installation.

How it compares

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

Price $4,808.99
Pricier than about 79% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $37.57 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-744K1
Total capacity128 GB
Product type288-Pin DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock
In the box
Included items128 GB (1 × 128 GB) DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM

Questions about this item

Does the 128GB module arrive as a single stick or do I need to buy additional DIMMs to reach that capacity?

The package contains one 128GB DDR5 6400 CL52 4Rx4 ECC RDIMM, so the full capacity is supplied in a single module.

Why choose the 4Rx4 128GB version instead of a lower-rank alternative?

The 4Rx4 organisation packs 128GB into one 288-pin RDIMM, maximising density per slot on the ASRock Rack W890D8-2L2T.

What does the 6400 MT/s rating deliver once the RDIMM is installed in the W890D8-2L2T?

The module runs at DDR5-6400 with CL52 latency at 1.1V, providing the rated throughput and error correction for the qualified server platform.

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