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Eight green DDR5 RDIMM modules in a row, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (8x16GB) DDR5 6400MHz CL52 1.1V ECC RDIMM memory upgrade for Supermicro SYS-222BT-HER

SKU CH-2FRC-QEQ8M

Eight 16 GB registered ECC DDR5 modules at 6400 MHz CL52 1.1 V, validated for the Supermicro SYS-222BT-HER BigTwin server

  • Total capacity128 GB (8 × 16 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank1Rx8
  • 128GB total capacity scales multi-threaded workloads
  • 6400MHz DDR5 speed feeds data-intensive applications
  • ECC RDIMM design protects data integrity
  • 10V operation reduces power draw
  • 8x16GB 1Rx8 kit matches SYS-222BT-HER slots

Capacity and purpose

This 128GB kit contains eight 16GB DDR5 ECC RDIMM modules built for the Supermicro SYS-222BT-HER server. Registered buffering and error correction protect data integrity in multi-socket workloads. The 1.1V operating voltage matches the platform specification. It is not for systems that require unbuffered UDIMM or non-ECC memory.

DDR5 interface limits

DDR5 at 6400MHz PC5-51200 sets the peak transfer rate for this platform. CL52 latency and 1Rx8 rank organisation define the timing envelope the memory controller expects. Modules without registered buffering or ECC will not function in this server. The 288-pin form factor prevents installation in any other DDR generation slot.

Upgrade context

This kit replaces lower-capacity RDIMM sets or fills empty slots to reach the full 128GB configuration. The jump is worthwhile when virtualisation density, in-memory databases or compute-node consolidation demand the maximum supported registered ECC capacity. It does not apply to workstations or servers that accept only UDIMM or LRDIMM modules.

How it compares

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

Price $4,220.99
Pricier than about 77% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $32.98 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 numberMR51200-618K8
Total capacity128 GB (8 × 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 items128 GB (8 × 16 GB) DDR5 6400 MHz PC5-51200 1Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

Should I pick the 128GB kit with eight 16GB modules or a different capacity for my Supermicro SYS-222BT-HER?

The kit supplies 128GB total across eight 16GB DDR5 RDIMMs, matching the system's supported population and giving the maximum capacity this configuration provides.

What does the 6400MHz rating actually deliver once the modules are installed in the Supermicro BigTwin?

The memory runs at DDR5-6400 with CL52 latency at 1.1V, providing the rated PC5-51200 bandwidth when the platform enables the native speed.

How does the 288-pin DDR5 RDIMM interface limit performance in this server?

The 288-pin registered DDR5 form factor caps the kit to the electrical and timing constraints of the DDR5 RDIMM standard used by the SYS-222BT-HER.

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