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Sixteen bare green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 256GB (16x16GB) DDR5 4800 PC5-38400 1.1V 288-PIN ECC RDIMM server RAM

SKU CH-692J-2EJQM

256 GB server memory kit with sixteen 16 GB DDR5 4800 ECC registered DIMMs at CL40 and 1.10 V

  • Total capacity256 GB (16 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Capacity 256GB (16 x 16GB)

  • 256 GB total capacity across 16 matched modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw
  • 1Rx8 organisation optimises signal quality

256GB DDR5 4800 ECC RDIMM Kit

This 256GB kit contains sixteen 16GB DDR5 4800 registered DIMMs with ECC. It runs at 1.1V with a CAS latency of CL40. The modules use 1Rx8 organisation and 288-pin DDR5 form factor. Designed for servers and workstations that require registered memory with error correction.

Who This Suits and Who It Does Not

Suits administrators upgrading compatible DDR5 server platforms to 256GB with registered ECC modules. Not for systems that accept only unbuffered UDIMM memory or that cannot address 16GB per slot. Not for builds needing higher frequencies or lower latencies than the specified 4800 CL40 rating.

Deciding Specification — Registered ECC DDR5

The registered ECC DDR5 interface is the single specification that determines fit. Only motherboards with DDR5 RDIMM slots and registered memory support can use this kit. Verify the platform manual for RDIMM compatibility and maximum capacity per slot before purchase.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $6,755.99
Pricier than about 91% of the 6,523 comparable items (median $188.99).
Total capacity 256 GB (16 × 16 GB)
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $26.39 per GB
Pricier than about 88% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-618K16
Total capacity256 GB (16 × 16 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V

Other versions of this model

5 more in the same range

Questions about this item

Does my motherboard need 288-pin DDR5 RDIMM slots to run this 16-module kit?

Yes — the kit contains sixteen 288-pin DDR5 RDIMM modules, so the board must provide sixteen DDR5 RDIMM slots.

Can I keep my existing DDR5 4800 CL40 ECC RDIMMs and add this 256 GB kit without changing BIOS settings?

If the installed modules are also DDR5 4800 CL40 1.1 V 1Rx8 ECC RDIMMs, the system will usually train at the same speed and timing; otherwise the memory controller will drop to the slowest common settings.

How do I confirm the full 256 GB is recognised and ECC is active after installation?

Check the BIOS memory summary or OS tools such as dmidecode on Linux or Task Manager on Windows — they should show 256 GB total and report ECC enabled for each module.

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