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 ECC RDIMM modules, 288-pin, no heat spreader

NEMIX RAM

NEMIX RAM MR38400-924K2 128GB (2x64GB) DDR5 4800 CL40 ECC RDIMM 1.1V 2Rx4

SKU CH-X90J-VGNQS

128 GB DDR5 ECC registered server memory kit running at 4800 MT/s with CL40 latency and 1.1 V operation

  • Capacity128GB (2 x 64GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128 GB kit (2×64 GB) scales server capacity
  • DDR5 4800 MT/s (PC5-38400) feeds multi-core throughput
  • ECC + registered design protects data integrity
  • CL40 latency at 1.10 V balances speed and efficiency
  • Validated for SuperMicro IOT SuperServer 221 series

Server DDR5 ECC RDIMM Kit

This 128GB kit contains two 64GB registered DDR5 modules rated at 4800MT/s with CL40 latency. It is built for Supermicro IOT SuperServer systems including the SYS-221HE-FTNR, SYS-221HE-FTNRD and SYS-221HE-TNR platforms.

Registered ECC With Samsung Micron Hynix Chips

The modules use major OEM DRAM from Samsung, Micron or Hynix and operate at 1.1V without a heat spreader. Registered buffering and on-die ECC protect data integrity in multi-socket server workloads.

2Rx4 Rank For Dense Configurations

Each 64GB module is organised as dual-rank 2Rx4, allowing high capacity per DIMM slot on compatible Supermicro motherboards. Builders needing single-rank modules or non-ECC memory should look elsewhere.

Highlights

  • 128 GB kit (2×64 GB) scales server capacity
  • DDR5 4800 MT/s (PC5-38400) feeds multi-core throughput
  • ECC + registered design protects data integrity
  • CL40 latency at 1.10 V balances speed and efficiency
  • Validated for SuperMicro IOT SuperServer 221 series

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-924K2
Capacity128GB (2 x 64GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank2Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content128GB (2X64GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the ECC RDIMM modules require any firmware updates or reconfiguration after installation in the Supermicro SYS-221HE series?

These registered ECC DDR5 modules are designed for direct compatibility with the listed Supermicro SuperServer systems and install without firmware changes.

What thermal limit appears first when the 2Rx4 modules run continuously at 4800 MT/s in a 1U chassis?

The DDR5 4800 RDIMMs operate at 1.1 V without heat spreaders, so case airflow must keep module temperatures within JEDEC limits during sustained loads.

How much power do the two 64 GB sticks draw and how much noise do the extra cooling fans add?

At 1.10 V the kit draws low power for 128 GB capacity, and the modules themselves are silent; any noise comes from system fans responding to chassis thermals.

Also in this aisle

People compared these

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