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Eight green DDR5 RDIMM modules with black chips, no heat spreaders, 288 pins each

NEMIX RAM

NEMIX RAM 1TB 8x128GB DDR5 6400MHz CL52 1.1V 4Rx4 ECC RDIMM 288-Pin memory upgrade

SKU CH-ZDSF-E6V9C

An eight-module kit of 128GB DDR5 ECC RDIMMs running at 6400MHz CL52 and 1.1V, built for the ASRock Rack W890D8-2L2T motherboard

  • Total capacity1 TB (8 × 128 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank4Rx4
  • 1TB total capacity for high-density server workloads
  • 8 x 128GB modules enable full population of eight slots
  • DDR5 6400MHz speed with CL52 latency for responsive data access
  • ECC registered design protects data integrity in critical applications
  • 1V operation reduces power draw across the memory subsystem

1TB DDR5 ECC RDIMM kit

This NEMIX RAM kit provides 1TB of registered DDR5 memory across eight 128GB modules. It targets server and workstation administrators who need high-capacity, error-correcting memory for the ASRock Rack W890D8-2L2T platform.

Verify motherboard slot count and population rules

Confirm the board has eight available 288-pin DDR5 RDIMM slots and review the manual for supported population sequences with 4Rx4 modules. The kit operates at 1.1V with CL52 latency and 6400MHz speed, so ensure the BIOS is configured for these parameters.

Registered modules without heat spreaders

Each 288-pin RDIMM uses a 4Rx4 organisation and runs at 1.10V without integrated heat spreaders. The registered design adds a clock cycle for signal integrity in dense configurations, while the bare PCB requires adequate chassis airflow to maintain stable temperatures.

How it compares

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

Price $37,527.99
Pricier than about 94% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $37.53 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 numberMR51200-744K8
Total capacity1 TB (8 × 128 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 items1 TB (8 × 128 GB) DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

What comes in the box and do I need anything else to install it?

The kit contains eight 128 GB DDR5 RDIMM modules for a total of 1 TB. No extra cables, brackets or cooling parts are required; the modules plug directly into the motherboard's 288-pin slots.

How do I decide between the available versions or capacities for this kit?

This kit is a single 1 TB configuration (8 × 128 GB) at 6400 MHz CL52 1.1 V 4Rx4 ECC registered. If your platform needs a different capacity, speed or rank layout, you would select a different kit.

What does the 6400 MHz rating mean once the memory is running in my server?

6400 MHz is the DDR5 data rate (PC5-51200). The modules will operate at that speed with CL52 latency at 1.1 V provided the ASRock Rack W890D8-2L2T motherboard and CPU support DDR5-6400.

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