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Four green DDR5 RDIMM modules with black chips and gold contacts

NEMIX RAM

NEMIX RAM DDR5 64GB (4x16GB) 6400MHz CL52 1.1V 1Rx8 ECC Registered RDIMM Supermicro H14DSH memory upgrade

SKU CH-490N-QJYG9

64 GB DDR5 kit of four 16 GB registered ECC RDIMMs at 6400 MHz CL52 1.1 V for Supermicro H14DSH servers

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Exact DDR5-6400 CL52 1.1V spec matches Supermicro H14DSH controller for full-speed recognition
  • Registered ECC RDIMM architecture offloads controller and corrects single-bit errors for enterprise stability
  • 64GB kit as four 16GB 1Rx8 modules fills every slot at rated capacity
  • 288-pin RDIMM form factor fits H14DSH memory population rules precisely
  • Lifetime replacement warranty with US-based technical support included

Exact DDR5 ECC RDIMM Kit for Supermicro H14DSH

This 64GB kit contains four 16GB DDR5 6400MHz modules built to the 1Rx8 registered ECC specification. It is intended for administrators upgrading a Supermicro H14DSH motherboard that requires registered DIMMs with error correction. The 1.1V operating voltage and CL52 latency match the board's native memory controller settings.

Registered ECC with 1Rx8 Rank Architecture

The single specification that decides fitment is the registered ECC RDIMM format combined with a 1Rx8 rank structure. Unbuffered UDIMMs or modules with a different rank organisation will not be recognised by the H14DSH memory controller and cannot populate all slots at the rated 6400MHz speed.

Four-Module Kit Enables Full-Channel Population

The bundle supplies exactly four 16GB sticks so every memory channel on the H14DSH can be filled in a single purchase. No additional modules, heat spreaders or configuration software are included; the kit simply delivers the matched set the motherboard's population rules expect.

How it compares

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

Price $1,823.99
Pricier than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $28.50 per GB
Pricier than about 80% 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 numberMR51200-618K4
Total capacity64 GB (4 × 16 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items64 GB 4 × 16 GB DDR5 6400 MHz PC5-51200 1Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

What does the 6400 MT/s speed mean when the kit is installed in a Supermicro H14DSH?

The modules run at the rated DDR5-6400 transfer rate with CL52 latency and 1.10 V, so the memory controller recognises the full 64 GB capacity without down-clocking.

How does the 288-pin RDIMM registered interface affect performance on this board?

The registered design buffers address and command signals, letting all four slots operate at the full 6400 MT/s speed while ECC corrects single-bit errors in real time.

Will the four 16 GB sticks fit the H14DSH DIMM slots without a heat spreader?

Yes, the bare 288-pin RDIMMs match the board's slot keying and low-profile height, so they seat correctly in the approved population order.

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