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Sixteen green DDR5 RDIMM modules with black chips in a row

NEMIX RAM

NEMIX RAM 256GB (16x16GB) DDR5 6400MHz CL52 ECC RDIMM SuperMicro SYS-222BT-HER memory upgrade

SKU CH-NAD6-N7W13

A 256 GB DDR5 ECC RDIMM kit with sixteen 16 GB modules running at 6400 MHz CL52 for the SuperMicro SYS-222BT-HER server

  • Total capacity256 GB (16 × 16 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank1Rx8
  • 256GB total capacity with sixteen 16GB modules installed
  • ECC RDIMM registered design protects data integrity in servers
  • DDR5 6400MHz speed with CL52 latency for responsive throughput
  • 1V operating voltage reduces power draw per module
  • Validated for SuperMicro BigTwin SYS-222BT-HER systems

Server memory kit for SuperMicro BigTwin

This NEMIX RAM kit delivers 256GB of DDR5 ECC RDIMM capacity across sixteen 16GB modules. Each module runs at 6400MHz with CL52 latency and 1.10V operation. Registered design and 1Rx8 organisation suit multi-socket server boards that require error-correcting registered memory.

Upgrade from lower-capacity

The jump is worth it when workloads exceed the limits of smaller kits or lower-speed modules. Adding sixteen modules fills all slots on compatible SuperMicro BigTwin nodes, raising total bandwidth to PC5-51200 while maintaining registered signal integrity. ECC protection reduces silent data corruption in critical datasets.

Suits administrators scaling memory

Builders who need non-ECC UDIMM modules or consumer DDR5 speeds should look elsewhere. Systems that cannot accept 288-pin registered DIMMs or that require heat spreaders will not support this kit. Verify slot count and qualified vendor lists before purchase.

How it compares

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

Price $7,740.99
Pricier than about 84% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (16 × 16 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $30.24 per GB
Pricier than about 86% 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 numberMR51200-618K16
Total capacity256 GB (16 × 16 GB)
Product type288-Pin DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB (16 × 16 GB) DDR5 6400 MHz PC5-51200 1Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Will these 288-pin DDR5 RDIMMs fit the DIMM slots on my SuperMicro SYS-222BT-HER?

Yes, the kit is built specifically for the SuperMicro BigTwin SYS-222BT-HER and uses the standard 288-pin DDR5 RDIMM form factor that matches the server's memory slots.

What is the correct way to populate all 16 modules across the BigTwin nodes?

Install identical 16 GB 1Rx8 modules in every slot of each node following the SuperMicro SYS-222BT-HER population guide so each channel receives the same rank configuration.

Do the Samsung, Micron or Hynix chips on these modules require any firmware updates or periodic replacement?

No, the major OEM DRAM chips are solid-state components with no firmware and no scheduled replacement; the modules carry a lifetime replacement warranty from the manufacturer.

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