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Four green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 256GB 4x64GB DDR5 4800MHz ECC Registered RDIMM Supermicro H14DSG-OD

SKU CH-7SDH-8AZAT

256 GB DDR5 ECC registered RDIMM kit with four 64 GB modules at 4800 MHz, CL40 and 1.1 V, validated for Supermicro H14DSG-OD

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

Size 256GB 4X64GB

Show 30 more configurations
  • 256 GB total capacity from four 64 GB modules for high-density server workloads
  • DDR5 4800 MT/s speed with CL40 latency matches the board's rated memory controller specification
  • Registered ECC RDIMM architecture offloads the controller and corrects single-bit errors on the fly
  • 10 V operating voltage and 2Rx4 rank layout meet the exact electrical requirements of the Supermicro H14DSG-OD
  • 288-pin DDR5 RDIMM form factor ensures physical and electrical compatibility with the target motherboard

256GB DDR5 RDIMM kit for Supermicro H14DSG-OD

This 256GB kit contains four 64GB DDR5 4800MHz Registered ECC modules built to the exact rank, voltage and timing the Supermicro H14DSG-OD memory controller expects. It is designed for administrators who need the full 256GB capacity recognised at rated speed without manual tuning.

Capacity and headroom at DDR5 4800 CL40

Four dual-rank 2Rx4 modules populate every slot at 1.1V, delivering 256GB of registered memory with on-the-fly single-bit error correction. The registered architecture keeps the controller stable when all channels are fully loaded, while the CL40 latency and PC5-38400 bandwidth handle typical virtualisation and database workloads. Workloads that exceed 256GB or require higher frequencies will need a platform that supports larger DIMMs or faster memory standards.

Upgrade path from smaller or unregistered kits

Replacing a partial kit or unbuffered UDIMMs with this matched 4x64GB set removes population-rule conflicts and enables the board to run all channels at the rated 4800MHz. The jump is worth it when the current configuration caps usable capacity, forces down-clocking, or lacks ECC protection for production data. Systems that already run a validated 256GB registered kit at this speed gain no additional capacity or bandwidth from this change.

Highlights

  • 256 GB total capacity from four 64 GB modules for high-density server workloads
  • DDR5 4800 MT/s speed with CL40 latency matches the board's rated memory controller specification
  • Registered ECC RDIMM architecture offloads the controller and corrects single-bit errors on the fly
  • 10 V operating voltage and 2Rx4 rank layout meet the exact electrical requirements of the Supermicro H14DSG-OD
  • 288-pin DDR5 RDIMM form factor ensures physical and electrical compatibility with the target motherboard

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 4800MHz ECC RDIMM kit work in my Supermicro H14DSG-OD alongside existing 64GB modules?

This kit provides four 64GB Registered ECC RDIMMs at 1.1V CL40. Your board's memory-population rules determine whether mixed capacities are allowed; consult the motherboard manual for the approved DIMM installation order before adding these modules.

How can I confirm the kit is running at the rated DDR5 4800MHz CL40 after installation?

Enter the system BIOS or UEFI and verify the memory frequency shows 4800 MT/s (PC5-38400) with CAS latency 40. Registered ECC modules initialise at the rated speed when the motherboard's memory controller recognises the correct 2Rx4 rank and 1.1V voltage.

What exactly ships in the box and do I need any extra parts?

The package contains the 256GB kit as four 64GB 288-pin DDR5 RDIMMs. No heat spreaders, cables, or additional hardware are included; the modules install directly into the motherboard's RDIMM slots.

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