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Green rectangular circuit board with gold edge connector and black memory chips, no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 4800MHz 2Rx4 CL40 1.1V ECC RDIMM Supermicro H14SHM memory upgrade

SKU CH-WQKW-6A4SV

128GB DDR5 4800MHz ECC registered RDIMM with CL40 latency and 1.1V operation, validated for Supermicro H14SHM motherboards

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

Size 128GB

Show 24 more configurations
  • 128 GB capacity fills every slot on the Supermicro H14SHM
  • DDR5 4800 MT/s runs at the board's rated speed
  • CL40 latency matches the memory controller's timing table
  • ECC RDIMM corrects single-bit errors to prevent silent data corruption
  • 1 V operation keeps power draw at spec

Server memory upgrade

This 128GB DDR5 4800MHz registered ECC RDIMM is built for the Supermicro H14SHM motherboard. It delivers the exact 2Rx4 rank, 1.1V voltage and CL40 timing the board's memory controller expects for full-capacity recognition at rated speed.

Verified fitment and stability

The 288-pin RDIMM form factor matches the H14SHM's required registered architecture, not a UDIMM or SODIMM. Registered buffering offloads the memory controller so every populated slot runs at full capacity, while on-die ECC corrects single-bit errors to prevent silent data corruption and unplanned reboots.

Check your configuration first

Server memory support varies by model, so consult your system or motherboard manual for supported capacities, approved DIMM population order and installation steps before ordering. This module uses DDR5 technology and will not fit boards designed for other DDR generations.

Highlights

  • 128 GB capacity fills every slot on the Supermicro H14SHM
  • DDR5 4800 MT/s runs at the board's rated speed
  • CL40 latency matches the memory controller's timing table
  • ECC RDIMM corrects single-bit errors to prevent silent data corruption
  • 1 V operation keeps power draw at spec

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR38400-724K1
Capacity128GB
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 Content128GB DDR5 4800MHz PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Will the 2Rx4 registered DIMM layout ever require a firmware or slot-order change as the Supermicro H14SHM ages?

The 2Rx4 registered design follows the board's population rules; any slot-order guidance comes from the motherboard manual, not the memory module itself.

What thermal limit appears first when the 1.1V DDR5 4800 kit runs continuously in a fully populated server?

The modules have no heat spreader, so case airflow must keep the DRAM within JEDEC operating temperature; the first limit is chassis cooling capacity.

How much power does the 128GB DDR5 4800 CL40 kit draw per module during all-day registered ECC operation?

At 1.10 V the registered ECC DIMM draws only the current required for its 4800 MT/s data rate; exact wattage depends on workload and motherboard voltage regulation.

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