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Eight green DDR5 RDIMM sticks with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 512GB DDR5 6400MHz CL52 2Rx4 ECC RDIMM 8x64GB memory upgrade

SKU CH-28AA-CCHZC

Eight 64 GB DDR5 registered ECC modules running at 6400 MHz CL52 1.10 V for Supermicro BigTwin SYS-222BT-HER

  • Total capacity512 GB (8 × 64 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank2Rx4
  • Massive 512 GB capacity with eight 64 GB modules
  • DDR5 6400 MHz speed rated at PC5-51200
  • ECC registered design detects and corrects data errors
  • Low 1.1 V operating voltage reduces power draw
  • Qualified for Supermicro BigTwin SYS-222BT-HER servers

Server memory kit for Supermicro BigTwin

This NEMIX RAM kit delivers 512GB of DDR5 ECC registered memory across eight 64GB modules. It is built for the Supermicro BigTwin SuperServer SYS-222BT-HER and targets administrators who need maximum registered capacity in that platform.

Upgrade from smaller RDIMM sets or lower speeds

The jump is worth it when workloads demand the full 512GB registered limit and the 6400MHz data rate with CL52 latency. Systems already populated with fewer modules or slower DDR5 will see the benefit in memory-bound server tasks.

Straightforward DIMM installation in matched

Install the eight 288-pin RDIMMs in the correct channel order for the BigTwin board. The usual issues are mixing ranks or speeds across channels and skipping the BIOS memory training step after population.

How it compares

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

Price $16,687.99
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 $32.59 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

Will the 288-pin DDR5 RDIMM modules fit the DIMM slots on my SuperMicro BigTwin SYS-222BT-HER?

Yes, the kit uses standard 288-pin DDR5 RDIMM form factor which matches the registered DIMM slots on the SuperMicro BigTwin SYS-222BT-HER.

What is the correct population order for the eight 64 GB 2Rx4 modules across the BigTwin's memory channels?

Populate one module per channel first, following the CPU socket and channel silkscreen labels on the motherboard, then add the second module to each channel; skipping a channel or mixing ranks per channel is the common mistake.

When should I expect to replace a module in this 512 GB ECC RDIMM kit?

ECC RDIMM modules are solid-state with no wear-out mechanism; replacement is only needed if a module fails memory diagnostics or the server reports uncorrectable ECC errors.

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