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Sixteen green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 256GB (16x16GB) 4800MHz CL40 1.1V 1Rx8 ECC Registered RDIMM 288-Pin Supermicro H14DSG-O-CPU

SKU CH-SKGF-53RZ9

A 256GB DDR5 registered ECC kit of sixteen 16GB modules running at 4800MHz CL40 and 1.1V, validated for Supermicro H14DSG-O-CPU servers

  • Capacity256GB (16 x 16GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes

Size 256GB 16X16GB

Show 30 more configurations
  • 256 GB total capacity from a 16-module kit
  • DDR5-4800 speed with CL40 latency for rated performance
  • 1 V registered ECC RDIMM reduces controller load and corrects errors
  • 288-pin 1Rx8 form factor matches Supermicro H14DSG-O-CPU requirements
  • Lifetime replacement warranty with US-based technical support

Supermicro H14DSG-O-CPU DDR5 kit

This 256GB kit contains sixteen 16GB DDR5 4800 RDIMMs built to the exact rank, voltage and timing the Supermicro H14DSG-O-CPU memory controller expects. Registered ECC architecture keeps every slot stable at full population while correcting single-bit errors before they reach production workloads. The 288-pin form factor matches the board's RDIMM slots and is not interchangeable with UDIMM or SODIMM modules.

Upgrade from partial or slower memory

Replacing a smaller or mixed-capacity kit with this sixteen-module set lets the server run all channels fully populated at the rated 4800 speed without downclocking. The jump is worth it when your current configuration leaves slots empty, mixes ranks, or uses lower-frequency DIMMs that force the controller to throttle the whole array. Registered buffering offloads the controller so the full 256GB operates reliably under sustained load.

Check manual before ordering

Verify the motherboard manual for supported capacities per socket, approved DIMM population order and any BIOS version requirements before purchase. Confirm the system accepts 1Rx8 Registered ECC modules at 1.1V and that all sixteen slots are available for this kit. Memory support varies by exact server model so the manual remains the authoritative source for fitment.

Highlights

  • 256 GB total capacity from a 16-module kit
  • DDR5-4800 speed with CL40 latency for rated performance
  • 1 V registered ECC RDIMM reduces controller load and corrects errors
  • 288-pin 1Rx8 form factor matches Supermicro H14DSG-O-CPU requirements
  • Lifetime replacement warranty with US-based technical support

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR38400-618K16
Capacity256GB (16 x 16GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx8
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemSupermicro
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content256GB 16X16GB DDR5 4800MHz PC5-38400 1Rx8 1.1V 288-PIN ECC RDIMM KIT

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Questions about this item

Does the 288-pin DDR5 RDIMM form factor fit the Supermicro H14DSG-O-CPU motherboard slots?

Yes, the kit uses 288-pin DDR5 RDIMM modules, which is the exact form factor the Supermicro H14DSG-O-CPU motherboard requires for registered memory.

What is the correct installation sequence for the 16 modules across the motherboard channels?

Populate the DIMM slots following the motherboard manual's population order, typically filling one DIMM per channel first across all channels before adding a second DIMM to any channel.

When should the 1Rx8 registered ECC modules be replaced under heavy server workloads?

Replace modules if ECC correctable error counts rise steadily in system logs, indicating degrading DRAM cells, or after a firmware update changes the supported memory configuration.

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