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Two green 288-pin DDR5 RDIMM modules with black chips, no heat spreader

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 4800 CL40 1.1V ECC RDIMM memory upgrade

SKU CH-MQBW-V5PDR

A 256GB DDR5 4800 ECC registered dual-rank kit with CL40 latency and 1.1V operation for Supermicro servers

  • Capacity256GB (2 x 128GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 256 GB total capacity across two 128 GB modules
  • DDR5 4800 MT/s speed rated at PC5-38400
  • ECC registered RDIMM design protects data integrity
  • Low 1.10 V operating voltage reduces power draw
  • Validated for SuperMicro SuperServer SYS-221HE series systems

Capacity and compatibility

This 256 GB kit contains two 128 GB DDR5 modules built for Supermicro IOT SuperServer SYS‑221HE‑FTNR, SYS‑221HE‑FTNRD and SYS‑221HE‑TNR systems. It targets administrators who need registered ECC memory for mission‑critical workloads.

Installation notes

Modules are 288‑pin RDIMMs that seat in standard DDR5 server slots; the registered buffer adds electrical load, so the board must support 4Rx4 organisation. A common mistake is mixing these with unbuffered UDIMMs or using a platform that only accepts 1Rx8 or 2Rx4 ranks.

Deciding specification

The kit runs at DDR5 4800 with CL40 latency at 1.1 V, delivering PC5‑38400 bandwidth. If your server requires a different speed, voltage or rank configuration, this memory will not be compatible.

Points forts

  • 256 GB total capacity across two 128 GB modules
  • DDR5 4800 MT/s speed rated at PC5-38400
  • ECC registered RDIMM design protects data integrity
  • Low 1.10 V operating voltage reduces power draw
  • Validated for SuperMicro SuperServer SYS-221HE series systems

Caractéristiques

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K2
Capacity256GB (2 x 128GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank4Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content256GB (2X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions sur cet article

How do I verify the kit is running at 4800 MT/s with CL40 after installation?

Enter the server BIOS or use a tool such as CPU-Z; the memory tab should show DDR5-4800 and a CAS latency of 40 for each 128 GB module.

What does the package contain and is anything else required?

The box includes two 128 GB 288-pin DDR5 RDIMM modules; no extra cables, brackets or software are needed for installation.

Which capacity version should I choose for a SuperMicro SYS-221HE-FTNR?

This 256 GB kit (2×128 GB) matches the supported 4Rx4 registered ECC configuration for that platform.

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