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Sixteen green DDR5 ECC RDIMM modules in a tray

NEMIX RAM

NEMIX RAM DDR5 256GB (16x16GB) 6400MHz CL52 ECC RDIMM memory upgrade

SKU CH-3A23-5E35S

256 GB DDR5 kit of sixteen 16 GB ECC registered RDIMMs at 6400 MHz CL52 1.1 V for Supermicro GrandTwin A+ AS-2116GT-HNTF

  • Total capacity256 GB (16 × 16 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank1Rx8
  • 256 GB total capacity from sixteen 16 GB modules
  • DDR5 6400 MHz speed for high-throughput server workloads
  • ECC registered design detects and corrects memory errors
  • 1 V operation reduces power draw in dense configurations
  • Qualified for SuperMicro GrandTwin A+ AS-2116GT-HNTF systems

Server-grade DDR5 ECC RDIMM kit

This 256GB kit contains sixteen 16GB DDR5 registered DIMMs rated at 6400MHz with CL52 latency and 1.1V operation. It is built for the Supermicro GrandTwin A+ Server AS-2116GT-HNTF where ECC and registered signalling are required for data integrity.

Sixteen matched modules in one package

The kit delivers the full 256GB capacity in a single shipment, so every slot in the target platform can be populated with identical 1Rx8 Samsung, Micron or Hynix ICs. This eliminates the risk of mixing revision codes or latency bins across channels.

288-pin registered form factor

Each module uses the standard DDR5 RDIMM pin-out and operates at 1.10V without a heat spreader, fitting the server’s memory bays directly. Registered buffering reduces electrical load on the memory controller, supporting stable operation in the dense GrandTwin chassis.

How it compares

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

Price $7,479.99
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 $29.22 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 numberMR51200-618K16
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 the 16 registered DIMMs need any firmware updates or battery replacements over their service life?

No firmware or battery maintenance is required for these DDR5 RDIMM modules; they operate without onboard batteries and do not accept field firmware updates.

What limit appears first when the kit runs continuously at 6400 MHz CL52 in the Supermicro GrandTwin AS-2116GT-HNTF?

The memory controller’s maximum supported data rate and the motherboard’s 16-slot population rule cap sustained throughput before any module-level constraint is reached.

How much heat and power do the 16 registered DIMMs produce running all day at 1.1 V?

Each 1Rx8 module draws low power at 1.1 V, so the full 256 GB kit generates modest heat that the server’s standard airflow handles without extra cooling.

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