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Four green DDR5 RDIMM modules without heat spreaders in a clear tray

NEMIX RAM

NEMIX RAM DDR5 4800 ECC RDIMM 128GB (4x32GB) CL40 1.1V 2Rx8 Supermicro H14DST-F memory upgrade

SKU CH-9WE4-JNQWR

128GB DDR5-4800 ECC Registered RDIMM kit (4x32GB) validated for Supermicro H14DST-F servers, running at 1.1V CL40 with 2Rx8 rank for stable full-capacity operation

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 4X32GB

Show 30 more
  • Exact 128 GB DDR5 4800 kit with 2Rx8 registered ECC so the H14DST-F recognises full capacity at rated speed
  • 1 V CL40 timing matches the board's memory controller for stable full-population operation
  • Registered architecture offloads the controller enabling every slot to run fully populated at 128 GB
  • ECC corrects single-bit errors on the fly preventing silent data corruption and unplanned reboots
  • Verified 288-pin RDIMM form factor fits the Supermicro H14DST-F motherboard memory slots

System-specific DDR5 ECC RDIMM kit

This 128GB kit contains four 32GB DDR5 4800 Registered ECC modules built to the exact voltage, rank and timing the Supermicro H14DST-F memory controller expects. It is intended for administrators upgrading that specific server platform with validated, fully populated memory.

Registered 2Rx8 architecture at 1.1V

The modules use a 2Rx8 registered design that buffers address and command signals so every slot runs at the rated DDR5 4800 speed when all four DIMMs are installed. ECC corrects single-bit errors on the fly to prevent silent data corruption in production workloads.

128GB total capacity across four slots

The kit fills four DIMM sockets with 32GB each, delivering the full 128GB the board can address in this configuration. Adding further memory would require a different motherboard or a platform that supports higher-density modules.

How it compares

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

Price $3,227.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $25.22 per GB
Pricier than about 70% 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 numberMR38400-328K4
Total capacity128 GB (4 × 32 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 rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB 4 × 32 GB DDR5 4800 MHz PC5-38400 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

What does the DDR5-4800 rating mean once the kit is installed in a Supermicro H14DST-F?

The memory controller will recognise the modules at their rated 4800 MT/s speed, delivering the full PC5-38400 bandwidth the platform expects.

How does the 288-pin RDIMM form factor and registered design affect compatibility?

The 288-pin Registered DIMM is the exact form factor the H14DST-F requires; the buffered architecture lets all four slots run fully populated without overloading the controller.

What physical clearance does the 4-module kit need inside the chassis?

Each 32 GB module is a standard-height 288-pin RDIMM with no heat spreader, so it fits the regular DIMM slots on the H14DST-F without extra clearance.

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