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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 768GB 8x96GB DDR5 6400 CL52 1.1V ECC RDIMM ASRock Rack W890D8-2L2T memory upgrade

SKU CH-SNH6-72A2W

A 768 GB DDR5 ECC RDIMM kit of eight 96 GB modules at 6400 MHz CL52 for the ASRock Rack W890D8-2L2T

  • Total capacity768 GB (8 × 96 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank2Rx4
  • 768 GB total capacity from eight 96 GB modules
  • DDR5 6400 speed with CL52 latency for server workloads
  • ECC registered design protects data integrity in critical tasks
  • 10 V operation reduces power draw per module
  • 288-pin RDIMM form factor fits the ASRock Rack W890D8-2L2T

768GB DDR5 ECC RDIMM kit for ASRock Rack W890D8-2L2T

This 768GB kit contains eight 96GB registered DDR5 modules built for the ASRock Rack W890D8-2L2T motherboard. It targets servers and workstations that require error-correcting memory at high density. Each module operates at 1.1V with CL52 latency.

DDR5 6400 registered limits

The modules run at 6400MHz PC5-51200 using a 2Rx4 organisation and registered signalling. Registered DIMMs add a clock cycle of buffering, so the memory controller must support registered operation. ECC function requires a platform that enables error correction across the full 768GB capacity.

288-pin RDIMM build implications

The 288-pin RDIMM form factor fits standard DDR5 server slots without a heat spreader, leaving clearance for dense slot populations. Eight modules fill every channel on the target board, so airflow across the bare PCB becomes the primary cooling path. Buyers who need unbuffered UDIMMs or non-ECC memory cannot use this kit.

How it compares

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

Price $22,421.99
Pricier than about 92% of the 21,161 comparable items (median $397.99).
Total capacity 768 GB (8 × 96 GB)
Higher than about 92% of the 20,941 comparable items (median 32 GB).
Price per GB $29.20 per GB
Pricier than about 83% 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 numberMR51200-9624K8
Total capacity768 GB (8 × 96 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 items768 GB (8 × 96 GB) DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Should I pick the 8-module 768 GB kit or a smaller capacity for my ASRock Rack W890D8-2L2T?

The 8 x 96 GB kit fills all eight DDR5 slots on the W890D8-2L2T and delivers the full 768 GB supported by the platform. Choose a smaller kit only if you need to leave slots open for future expansion.

What does the 6400 MT/s rating actually give me once the modules are installed?

The memory runs at 6400 MT/s with CL52 latency at 1.1 V, providing the maximum standard DDR5 throughput the W890D8-2L2T memory controller supports without overclocking.

How does the 288-pin DDR5 RDIMM interface limit performance on this board?

The 288-pin DDR5 RDIMM interface is the native socket for the W890D8-2L2T, so the 6400 MT/s CL52 modules operate at their rated speed without downclocking caused by socket mismatch.

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