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Green bare circuit board with black memory chips gold edge connector 288 pins single module

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 CL40 4Rx4 1.1V ECC RDIMM memory upgrade

SKU CH-5EPV-FP18N

A 128 GB DDR5 4800 CL40 4Rx4 1.1 V ECC registered DIMM for Cisco servers

  • Capacity128GB
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128GB capacity scales memory-heavy server workloads
  • DDR5 4800 speed feeds data to multi-core CPUs
  • ECC registered design protects data integrity under load
  • 1V operation reduces power draw per module
  • Cisco-validated compatibility ensures drop-in installation

Cisco UCSX-MR128G4RE1 Compatible DDR5 RDIMM

This 128GB DDR5 4800 registered ECC module is built for Cisco server platforms that require the UCSX-MR128G4RE1 part number. It delivers 4Rx4 organisation at 1.10V with CL40 latency for enterprise workloads.

Tool-less DIMM slot installation

The 288-pin RDIMM fits standard DDR5 server slots and requires no extra cables or brackets. Common issues include mixing registered and unbuffered DIMMs or populating slots in an order the platform firmware rejects.

Suited for Cisco server memory upgrades

Ideal for administrators expanding capacity on qualified Cisco systems that specify this exact part. Not suited for consumer desktop boards, laptops or any platform that does not support registered ECC DDR5 RDIMMs.

Highlights

  • 128GB capacity scales memory-heavy server workloads
  • DDR5 4800 speed feeds data to multi-core CPUs
  • ECC registered design protects data integrity under load
  • 1V operation reduces power draw per module
  • Cisco-validated compatibility ensures drop-in installation

Specifications

BrandNEMIX RAM
SeriesCisco Server Compatible Series Memory
ModelCisco DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K1
Capacity128GB
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemCisco
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank4Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content128GB (1X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

How can I verify the module is running at DDR5 4800 CL40 after installation?

Enter the server BIOS or use a tool such as CPU-Z to confirm the memory operates at 4800 MT/s with CAS latency 40 and 1.1 V.

What is included in the package and do I need any extra parts?

The box contains one 128 GB 288-pin DDR5 RDIMM; no additional components are required for installation.

Which capacity and rank configuration should I select for a Cisco UCS server needing registered ECC memory?

Choose this single 128 GB 4Rx4 registered ECC RDIMM to match the Cisco UCSX-MR128G4RE1 specification.

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