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Four green DDR5 RDIMM modules in static bags

NEMIX RAM

NEMIX RAM DDR5 4800 128GB (4x32GB) CL40 1.1V 2Rx8 ECC RDIMM Supermicro X14SDV-20C-SP3F memory upgrade

SKU CH-HBYG-5082C

128 GB DDR5 server kit with four 32 GB ECC registered DIMMs running at 4800 MT/s, CL40, 1.1 V, validated for the Supermicro X14SDV-20C-SP3F motherboard

  • Capacity128GB (4 x 32GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes

Size 128GB 4X32GB

  • 128 GB total capacity from four 32 GB modules for large server workloads
  • DDR5 4800 speed delivers high bandwidth for demanding applications
  • Registered ECC design corrects single-bit errors to protect data integrity
  • 1 V operation reduces power draw in fully populated systems
  • Exact fit for Supermicro X14SDV-20C-SP3F motherboard with 288-pin RDIMM form factor

Purpose-built server upgrade

This 128 GB kit contains four 32 GB DDR5 ECC Registered DIMMs tuned to 4800 MT/s at CL40 and 1.1 V. It is designed for administrators expanding a Supermicro X14SDV-20C-SP3F platform that requires registered memory with on-die error correction.

Kit composition and stability

The package delivers four identical modules so every slot can be populated with matching rank, voltage and timing. Registered buffering reduces electrical load on the memory controller while ECC corrects single-bit errors before they affect running workloads.

Installation and common issues

Modules key into the board's 288-pin RDIMM slots in the order specified by the Supermicro manual; deviating from that sequence can prevent the system from recognising the full capacity. Verify the approved population rules before starting the upgrade.

Highlights

  • 128 GB total capacity from four 32 GB modules for large server workloads
  • DDR5 4800 speed delivers high bandwidth for demanding applications
  • Registered ECC design corrects single-bit errors to protect data integrity
  • 1 V operation reduces power draw in fully populated systems
  • Exact fit for Supermicro X14SDV-20C-SP3F motherboard with 288-pin RDIMM form factor

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR38400-328K4
Capacity128GB (4 x 32GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemSupermicro
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content128GB 4X32GB DDR5 4800MHz PC5-38400 2Rx8 1.1V 288-PIN ECC RDIMM KIT

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Questions about this item

Will the 1.10 V DDR5 modules need a voltage adjustment later?

The kit runs at the standard 1.10 V; no voltage change is required for the Supermicro X14SDV-20C-SP3F motherboard.

What limits sustained throughput on the 4800 MHz CL40 RDIMMs?

The CAS latency of CL40 at DDR5-4800 sets the timing ceiling during continuous workloads.

How much heat do the four 32 GB sticks produce under all-day load?

The modules have no heat spreader and operate at 1.10 V, so thermal output stays low in the server chassis airflow.

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