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Four green DDR5 RDIMM modules without heat spreaders, 288 pins each

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR5 6400MHz CL52 2Rx4 1.1V ECC RDIMM for ASRock Rack W890D8-2L2T memory upgrade

SKU CH-RD36-N9A36

256 GB registered DDR5 kit with four 64 GB ECC modules at 6400 MHz CL52 1.1 V for ASRock Rack W890D8-2L2T

  • Total capacity256 GB (4 × 64 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank2Rx4
  • 256 GB total capacity for heavy server workloads
  • DDR5 6400 MHz CL52 for high-throughput registered memory
  • ECC RDIMM with 2Rx4 organisation for data integrity
  • 1 V operating voltage for efficient power draw
  • Four 64 GB modules in a 288-pin kit for ASRock Rack W890D8-2L2T

Capacity and platform fit

This kit provides 256GB of DDR5 memory in four 64GB registered ECC modules built for the ASRock Rack W890D8-2L2T motherboard. It targets servers and workstations that require high-capacity, error-correcting memory for virtualization, database or compute workloads.

Before ordering

Confirm the board has four available 288-pin DDR5 RDIMM slots and that the system firmware supports 2Rx4 registered modules at 6400MHz. The kit runs at 1.1V with CL52 latency; verify the platform can operate at this voltage and timing without manual adjustment.

Build and daily implications

Modules are unbuffered by a heat spreader, so airflow across the DIMMs is necessary in dense chassis. The registered design adds a clock cycle of buffering for signal integrity at scale, and the ECC function corrects single-bit errors during continuous operation.

How it compares

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

Price $8,273.99
Pricier than about 85% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $32.32 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 numberMR51200-924K4
Total capacity256 GB (4 × 64 GB)
Product type288-Pin DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock
In the box
Included items256 GB (4 × 64 GB) DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

What comes in the NEMIX RAM 256GB kit and is anything else required?

The kit includes four 64GB DDR5 6400MHz CL52 2Rx4 1.1V ECC RDIMM modules for a total of 256GB. No extra parts are needed for installation on the ASRock Rack W890D8-2L2T motherboard.

Which capacity version of this DDR5 ECC RDIMM kit should I choose for the ASRock Rack W890D8-2L2T?

This specific kit provides 256GB across four 64GB modules. Choose it when your workload needs that total capacity and the board has four available DDR5 RDIMM slots.

What does the 6400MHz rating mean once the modules are installed in the ASRock Rack W890D8-2L2T?

The modules run at 6400MHz with CL52 latency at 1.1V, delivering PC5-51200 bandwidth as registered ECC DDR5 memory for the W890D8-2L2T platform.

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