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Eight green DDR5 RDIMM sticks in anti-static tray

NEMIX RAM

NEMIX RAM DDR5 ECC RDIMM 256GB 8x32GB 4800MHz CL40 1.1V 2Rx8 Supermicro H14DSH

SKU CH-N84A-RQ55J

256 GB DDR5 ECC RDIMM kit with eight 32 GB modules at 4800 MHz CL40, registered for full-capacity stability on Supermicro H14DSH

  • 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

Show 30 more
  • 256 GB total capacity from eight 32 GB modules for maximum server density
  • DDR5 4800 speed with CL40 latency delivers rated bandwidth without down-clocking
  • Registered ECC architecture corrects single-bit errors and stabilises fully populated slots
  • 1 V operation matches the motherboard's memory-controller specification exactly
  • 288-pin RDIMM form factor fits Supermicro H14DSH memory slots precisely

256 GB DDR5 ECC RDIMM kit for Supermicro H14DSH

This 256 GB kit contains eight 32 GB DDR5-4800 registered ECC modules built to the exact rank, voltage and timing the Supermicro H14DSH memory controller expects. It is intended for administrators who need to populate every slot at full rated capacity without compatibility surprises.

Registered 288-pin form factor with no heat spreader

Each module uses a 288-pin RDIMM layout that matches the board’s registered-DIMM requirement; a UDIMM or SODIMM will not fit. The registered architecture buffers the command bus so all eight slots can run fully populated at 4800 MT/s while ECC corrects single-bit errors on the fly, protecting data integrity in production workloads.

Replaces mismatched or undersized DDR5 kits

If the server currently runs a partial population, slower modules or a mix of ranks that force the controller to down-clock, this spec-matched kit restores full-speed operation across all channels. The jump is worth it when the platform’s population rules demand identical 2Rx8 modules at 1.1 V to reach the rated 256 GB capacity.

How it compares

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

Price $7,489.99
Pricier than about 84% 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 $29.26 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 numberMR38400-328K8
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

Other versions of this model

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Questions about this item

What does the DDR5-4800 (PC5-38400) rating mean for actual throughput?

The modules run at 4800 MT/s with CL40 timing at 1.10V, delivering the rated PC5-38400 bandwidth when the motherboard populates all slots per its rules.

Will these 288-pin RDIMMs fit the Supermicro H14DSH DIMM slots?

Yes, the kit uses the 288-pin registered RDIMM form factor that the H14DSH requires; it is not a UDIMM or SODIMM.

How should I install the 8x32GB kit on the H14DSH, and what step is often missed?

Follow the board manual's exact population order for all eight slots; the step most often missed is seating each module until both locking tabs click.

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