We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two green DDR5 RDIMM modules, black chips, no heat spreader

NEMIX RAM

NEMIX RAM DDR5 4800 ECC Registered RDIMM 128GB (2 x 64GB) Supermicro H14SST-G memory upgrade

SKU CH-C5WS-R1Q7H

A 128GB DDR5 4800 ECC Registered RDIMM kit (2 x 64GB, CL40, 1.1V, 2Rx4) validated for the Supermicro H14SST-G motherboard

  • Capacity128GB (2 x 64GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes

Size 128GB 2X64GB

Show 30 more configurations
  • Exact DDR5-4800 128GB kit matches Supermicro H14SST-G memory controller specs
  • Registered ECC RDIMM design keeps every slot stable at full population
  • 2Rx4 organisation at 1.1V delivers rated speed without tuning
  • Major-brand Samsung Micron Hynix chips ensure enterprise-grade reliability
  • Lifetime replacement warranty plus free US-based technical support included

Supermicro H14SST-G DDR5 ECC RDIMM kit

This 128 GB kit contains two 64 GB DDR5 4800 registered ECC RDIMMs built for the Supermicro H14SST-G motherboard. The modules run at 1.1 V with CL40 latency and a 2Rx4 rank layout that matches the board's memory controller expectations. Server administrators and integrators upgrading this specific platform receive the exact capacity and signalling the firmware recognises at full speed.

Check motherboard manual for population rules

Verify the H14SST-G manual for approved DIMM population order, maximum supported capacity per slot, and any BIOS version requirements before installation. The board requires 288-pin registered RDIMMs; unbuffered UDIMMs or SODIMMs will not function. Confirm that your chassis provides adequate airflow for fully populated memory channels.

Replaces lower-capacity or slower DDR5 RDIMMs

The jump is worth it when workloads need the full 128 GB at the native 4800 MT/s data rate with registered buffering and ECC protection. Systems running with smaller modules or mixed ranks that force down-clocking gain capacity and stability in a single matched kit. Buyers who need a different form factor, non-ECC memory, or a speed grade not supported by this motherboard should look elsewhere.

Highlights

  • Exact DDR5-4800 128GB kit matches Supermicro H14SST-G memory controller specs
  • Registered ECC RDIMM design keeps every slot stable at full population
  • 2Rx4 organisation at 1.1V delivers rated speed without tuning
  • Major-brand Samsung Micron Hynix chips ensure enterprise-grade reliability
  • Lifetime replacement warranty plus free US-based technical support included

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR38400-924K2
Capacity128GB (2 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 Content128GB 2X64GB DDR5 4800MHz PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM KIT

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Does the kit include both 64 GB modules or must I purchase a second stick separately?

The package contains two 64 GB RDIMMs for a total of 128 GB, so no additional modules are required.

My board has eight DDR5 slots — should I populate all slots with this 2Rx4 kit or use a different rank configuration?

This 2Rx4 registered ECC kit is the exact rank and voltage the H14SST-G expects; follow the motherboard manual for the approved population order when filling all slots.

Will the DDR5-4800 CL40 rating run at that speed on the Supermicro H14SST-G without manual BIOS tuning?

Yes, the modules are spec-matched to the board's memory controller, so they are recognised at full capacity and operate at the rated 4800 MT/s CL40 automatically.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.