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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 256GB 8x32GB DDR5 4800 CL40 2Rx8 ECC RDIMM Supermicro H14DSG-O-CPU

SKU CH-T6E4-8GDRF

256 GB kit of eight 32 GB DDR5-4800 registered ECC RDIMMs at 1.1 V CL40, validated for the Supermicro H14DSG-O-CPU motherboard

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 8X32GB

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  • 256 GB capacity across eight 32 GB modules for maximum server density
  • DDR5 4800 speed with CL40 latency matches the board's rated timing
  • 10 V operation and 2Rx8 registered ECC design for stable fully populated slots
  • 288-pin RDIMM form factor verified for Supermicro H14DSG-O-CPU motherboard
  • Samsung, Micron or Hynix chips provide enterprise-grade reliability

256GB DDR5-4800 ECC RDIMM kit

This 256GB kit contains eight 32GB DDR5 registered ECC modules rated at 4800 MT/s with CL40 latency and 1.1V operation. It is built for the Supermicro H14DSG-O-CPU motherboard where registered DIMMs are required for full-capacity population. The 2Rx8 organisation matches the board's memory-controller expectations so the system recognises every module at its rated speed. Buyers needing unbuffered UDIMMs or non-ECC memory for a workstation or desktop platform should look elsewhere.

Installation notes

Each module uses the standard 288-pin DDR5 RDIMM keying, so it seats in the board's DIMM slots like any registered server memory. Because the kit fills all eight channels, follow the motherboard manual's exact population sequence; skipping a slot or mixing ranks can prevent the system from posting. The modules have no heat spreaders, so verify that your chassis airflow reaches the memory area, especially in dense 1U or 2U enclosures where restricted airflow can raise module temperatures.

Pre-order checklist

Confirm that your Supermicro H14DSG-O-CPU is running a BIOS version that supports 256GB of DDR5-4800 registered ECC with 2Rx8 modules. Check the manual for the approved DIMM population order and any per-channel or per-socket capacity limits before ordering. Ensure the server's power budget accommodates eight registered DIMMs at 1.1V, and that the chassis provides sufficient clearance for full-height 288-pin modules.

How it compares

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

Price $7,291.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $28.48 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 numberMR38400-328K8
Total capacity256 GB (8 × 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 items256 GB 8 × 32 GB DDR5 4800 MHz PC5-38400 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

How do I confirm the kit runs at DDR5 4800 CL40 after installation?

Enter the BIOS and verify the memory speed shows 4800 MT/s with CAS latency 40 at 1.1 V; the registered ECC design lets all eight slots operate at rated timing when populated per the motherboard manual.

What does the 256 GB kit contain and is anything else required?

The box includes eight 32 GB DDR5 288-pin RDIMM modules; no extra parts are needed for the Supermicro H14DSG-O-CPU, but follow the board's population order for full capacity.

Why choose the 256 GB 8×32 GB version instead of a smaller kit?

This exact-match kit provides the full 256 GB capacity with 2Rx8 registered ECC modules at 1.1 V CL40, matching the memory controller expectations for stable, fully populated operation.

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