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Four green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5 4800 ECC RDIMM 128GB (4 x 32GB) 2Rx8 CL40 1.1V 288-pin Supermicro H14SST-G memory upgrade

SKU CH-41AX-HPXSC

128 GB DDR5-4800 registered ECC kit (4 × 32 GB, 2Rx8, CL40, 1.1 V) validated for the Supermicro H14SST-G motherboard

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

Size 128GB 4X32GB

Show 30 more configurations
  • 128 GB capacity in a 4 x 32 GB kit expands server memory for heavy workloads
  • DDR5-4800 speed with CL40 latency delivers rated bandwidth for demanding applications
  • Registered ECC design corrects single-bit errors and offloads the memory controller
  • 10 V operation matches platform voltage requirements for stable full-population use
  • 288-pin RDIMM form factor fits the Supermicro H14SST-G motherboard exactly

Exact-Match Upgrade for Supermicro H14SST-G

This 128GB kit delivers four 32GB DDR5 4800 RDIMMs built to the exact rank, voltage and timing the motherboard expects. Registered ECC architecture ensures every slot runs fully populated at rated speed while correcting single-bit errors before they reach production workloads. It targets administrators who need guaranteed compatibility without manual tuning.

Registered ECC Build with 288-Pin Form Factor

Each module uses a 288-pin registered design that offloads the memory controller, allowing all four DIMMs to operate at 1.1V and CL40 without signal degradation. The absence of a heat spreader keeps the profile low for dense server chassis where airflow is managed by the system. Builders who require unbuffered UDIMMs or SODIMM modules cannot use this kit.

DDR5 4800 PC5-38400 2Rx8 CL40 Specification

The memory runs at DDR5 4800 (PC5-38400) with a 2Rx8 organisation, CL40 latency and 1.1V operation, matching the board's qualified vendor list. Populating all four slots yields the full 128GB capacity at the rated data rate. Systems that demand a different speed grade, rank configuration or voltage will not recognise these modules correctly.

Highlights

  • 128 GB capacity in a 4 x 32 GB kit expands server memory for heavy workloads
  • DDR5-4800 speed with CL40 latency delivers rated bandwidth for demanding applications
  • Registered ECC design corrects single-bit errors and offloads the memory controller
  • 10 V operation matches platform voltage requirements for stable full-population use
  • 288-pin RDIMM form factor fits the Supermicro H14SST-G motherboard exactly

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

What speed and latency does the DDR5-4800 PC5-38400 kit run at on the Supermicro H14SST-G?

The modules operate at 4800 MT/s with CL40 timings at 1.1 V, matching the board's native DDR5-4800 specification for full-rated performance.

What physical slot and form factor do these 288-pin RDIMMs require?

They need four standard DDR5 RDIMM slots (288-pin registered DIMM); the board must accept registered ECC modules, not UDIMM or SODIMM.

In which order should I populate the four 32 GB sticks on the H14SST-G?

Follow the motherboard manual's exact DIMM population sequence for 2Rx8 registered ECC kits; installing in the wrong slot order is the most common reason the system fails to recognise the full 128 GB.

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