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Four green DDR5 RDIMM modules without heat spreaders in a static bag

NEMIX RAM

NEMIX RAM 256GB 4x64GB DDR5 4800 CL40 1.1V ECC RDIMM Supermicro H14SSL-N memory upgrade

SKU CH-A9XF-9X453

A 256 GB DDR5 ECC registered server memory kit with four 64 GB modules at 4800 MT/s, CL40, 1.10 V, validated for the Supermicro H14SSL-N motherboard

  • Capacity256GB (4 x 64GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes

Size 256GB 4X64GB

Show 24 more configurations
  • 256 GB total capacity with four 64 GB modules for full server population
  • DDR5 4800 speed and CL40 latency match the memory controller's rated timing
  • Registered ECC architecture corrects single-bit errors and offloads the controller for stable fully-populated operation
  • 1 V operating voltage and 2Rx4 rank align with Supermicro H14SSL-N specifications
  • 288-pin RDIMM form factor fits the motherboard's required DIMM slots exactly

Exact DDR5 upgrade for Supermicro H14SSL-N

This 256GB kit contains four 64GB DDR5 4800 RDIMMs built to the registered ECC specification the H14SSL-N memory controller expects. It targets administrators who need the full 256GB capacity in a single validated package.

Registered ECC headroom at DDR5 4800

The 2Rx4 organisation and 1.1V operation let every slot run fully populated at rated speed while ECC corrects single-bit errors on the fly. Systems that require more than 256GB or speeds above 4800 will exceed this kit's rated ceiling.

Lifetime replacement and US technical support

The bundled lifetime warranty and free US-based support replace a failed module without extra cost and give direct engineering assistance for population-order questions. Buyers who need on-site spares or a different form factor must source those separately.

Highlights

  • 256 GB total capacity with four 64 GB modules for full server population
  • DDR5 4800 speed and CL40 latency match the memory controller's rated timing
  • Registered ECC architecture corrects single-bit errors and offloads the controller for stable fully-populated operation
  • 1 V operating voltage and 2Rx4 rank align with Supermicro H14SSL-N specifications
  • 288-pin RDIMM form factor fits the motherboard's required DIMM slots exactly

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR38400-924K4
Capacity256GB (4 x 64GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemSupermicro
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content256GB 4X64GB DDR5 4800MHz PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM KIT

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Questions about this item

Will this 256GB DDR5 4800 CL40 kit run at rated speed alongside existing DDR5 4800 modules in my Supermicro H14SSL-N?

Yes, the kit matches the exact DDR5 4800 PC5-38400 1.1V CL40 2Rx4 registered ECC specification your board expects, so mixed populations will operate at the common rated speed when populated per the manual.

How can I confirm the 4x64GB modules are recognised at full 256GB capacity and ECC is active after installation?

Check the BIOS memory information screen for 256GB total, DDR5 4800 MT/s, and ECC enabled; the OS memory report should also show 256GB with no correctable error count climbing under load.

What comes in the box and do I need any extra brackets or cables for the Supermicro H14SSL-N?

The box contains only the four 64GB 288-pin DDR5 RDIMM modules; no brackets, cables or additional hardware are required for the H14SSL-N DIMM slots.

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