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Eight green DDR5 RDIMM sticks in a row, no heat spreaders, 288-pin edge connectors visible

NEMIX RAM

NEMIX RAM 512GB DDR5 6400 CL52 1.1V ECC RDIMM 8x64GB memory upgrade

SKU CH-ARR1-BEQD9

Eight-module registered ECC DDR5 kit delivers 512 GB at 6400 MT/s with CL52 latency for Supermicro SYS-242B-NR servers

  • Total capacity512 GB (8 × 64 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank2Rx4
  • ECC protection safeguards data integrity in critical workloads
  • 6400 MHz DDR5 speed accelerates server responsiveness
  • 1 V operation reduces power draw per module
  • 2Rx4 registered design stabilises high-density configurations
  • 512 GB kit (8 × 64 GB) fits Supermicro SYS-242B-NR

512GB DDR5 ECC RDIMM kit

This NEMIX RAM kit delivers 512GB across eight 64GB DDR5 registered DIMMs running at 6400MHz with CL52 latency. It targets administrators scaling Supermicro MP SuperServer SYS-242B-NR platforms that require registered ECC memory for data integrity. The 1.1V operating voltage matches the DDR5 baseline for server modules.

Eight-module population fills every slot

The 8x64GB configuration occupies all available DIMM slots on the supported Supermicro motherboard, leaving no free sockets for further expansion. Each module uses a 2Rx4 organisation and 288-pin DDR5 RDIMM form factor, so the memory controller must support registered signalling and the specified rank structure. No heat spreaders are fitted, relying on chassis airflow for cooling.

Replaces smaller RDIMM sets or mixed-capacity kits

The jump is worthwhile when workloads exceed the capacity of a four-module kit or when mixed-capacity populations force the controller to run at lower speeds. Buyers who need more than 512GB or who require unbuffered DIMMs for workstation boards 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 $17,839.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $34.84 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 numberMR51200-924K8
Total capacity512 GB (8 × 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 systemsSupermicro
In the box
Included items512 GB (8 × 64 GB) DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How does the CL52 latency affect sustained throughput on this DDR5 6400 kit?

CL52 is the CAS latency at 6400 MT/s; lower latency reduces per-access delay, so sustained throughput stays closer to the rated PC5-51200 bandwidth during long workloads.

What thermal or power behaviour should I expect when all eight 64 GB modules run continuously at 1.1 V?

Registered ECC RDIMMs at 1.10 V draw modest power per module; with no heat spreaders fitted, adequate chassis airflow is needed to keep temperatures stable during all-day operation.

Which motherboard features must my Supermicro SYS-242B-NR already provide for this 8×64 GB registered kit to function?

The board must support DDR5 RDIMM slots, 2Rx4 registered modules, ECC operation and a total capacity of at least 512 GB across its 288-pin sockets.

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