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Two green DDR5 RDIMM modules with gold contacts and black chips, no heat spreader

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5-4800 CL40 2Rx8 ECC Registered RDIMM Supermicro H14DSG-O-CPU memory upgrade

SKU CH-AXDH-Y07TD

A 64 GB DDR5-4800 ECC Registered RDIMM kit built to the exact rank, voltage and timing the Supermicro H14DSG-O-CPU requires for full-capacity operation

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 64GB 2X32GB

Show 30 more
  • 64 GB capacity with two 32 GB modules for full server memory population
  • DDR5 4800 speed rated at PC5-38400 for rated data throughput
  • CL40 CAS latency at 1.1 V for specified timing and power profile
  • Registered ECC 2Rx8 design corrects single-bit errors and buffers every slot
  • Verified 288-pin RDIMM fitment for Supermicro H14DSG-O-CPU motherboard

Exact-fit DDR5-4800 ECC kit for Supermicro

This 64 GB kit delivers two 32 GB DDR5-4800 Registered ECC RDIMMs built to the memory controller's precise rank, voltage and timing requirements. It targets administrators upgrading a Supermicro H14DSG-O-CPU server who need guaranteed recognition at full capacity and rated speed.

Registered architecture

The buffered design offloads the memory controller so every slot runs fully populated at full capacity while ECC corrects single-bit errors on the fly. The 288-pin RDIMM form factor matches the board's physical and electrical requirements — not a UDIMM or SODIMM — and operates at 1.1 V with CL40 latency.

Replaces mixed-capacity or slower DDR5 modules

The jump is worth it when your current configuration limits total capacity, forces reduced speeds or leaves ECC unpopulated. Buyers who need non-ECC UDIMMs, SODIMMs or a different DDR generation cannot use this kit.

How it compares

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

Price $1,876.99
Pricier than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $29.33 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 numberMR38400-328K2
Total capacity64 GB (2 × 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 items64 GB 2 × 32 GB DDR5 4800 MHz PC5-38400 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Does the DDR5-4800 PC5-38400 interface run at 4800 MT/s on the Supermicro H14DSG-O-CPU?

Yes. The kit is specced at DDR5 4800 (PC5-38400) and the motherboard's memory controller recognises that speed, so both modules operate at the rated 4800 MT/s when installed correctly.

What physical slot and form factor do these modules need on the H14DSG-O-CPU board?

They are 288-pin DDR5 RDIMMs. The H14DSG-O-CPU requires registered DIMMs in its DDR5 DIMM slots — UDIMMs or SODIMMs will not fit or function.

What is the correct population order for the two 32 GB sticks, and which step do builders often miss?

Check the motherboard manual for the approved DIMM population sequence; a common mistake is inserting the modules in the wrong slot order, which prevents the system from recognising the full 64 GB capacity.

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