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Four green DDR5 RDIMM modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 4800 CL40 ECC RDIMM Cisco UCS C240 M7 memory upgrade

SKU CH-3ST5-C33YX

128 GB DDR5 ECC registered server memory kit with four 32 GB modules at 4800 MT/s and CL40 latency

  • Capacity128GB (4 x 32GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128 GB total capacity from four 32 GB modules
  • DDR5 4800 speed for high-throughput server workloads
  • ECC registered RDIMM protects data integrity under load
  • 1 V operation reduces power draw in dense chassis
  • Validated compatibility with Cisco UCS C240 M7 rack server

Cisco UCS C240 M7 memory kit

This 128GB kit contains four 32GB DDR5 4800 ECC RDIMM modules built for the Cisco UCS C240 M7 rack server. Registered buffering and on-die ECC protect data integrity in multi-socket enterprise workloads. The modules run at 1.1V and use a 288-pin form factor with 1Rx4 organisation.

IT teams scaling Cisco UCS C240 M7 capacity

Administrators who need validated, high-density memory for virtualisation, database or analytics tiers on this platform will find the kit matches the server's qualified vendor list. Environments requiring lower latency timings, non-ECC modules or consumer-form-factor DIMMs should look elsewhere.

Four-slot population at 4800 MT/s

Populating all four slots delivers 128GB of registered ECC capacity at the platform's native 4800 MT/s rate with CL40 latency. Workloads that exceed this capacity or demand higher memory frequencies will require a different server configuration or CPU generation.

Highlights

  • 128 GB total capacity from four 32 GB modules
  • DDR5 4800 speed for high-throughput server workloads
  • ECC registered RDIMM protects data integrity under load
  • 1 V operation reduces power draw in dense chassis
  • Validated compatibility with Cisco UCS C240 M7 rack server

Specifications

BrandNEMIX RAM
SeriesCisco Server Compatible Series Memory
ModelCisco DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-314K4
Capacity128GB (4 x 32GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemCisco
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content128GB (4X32GB) DDR5 4800MHZ PC5-38400 1Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

My Cisco UCS C240 M7 currently runs 32 GB RDIMMs — will this 128 GB kit replace them or must I add to open slots?

The kit provides four 32 GB RDIMMs for a total of 128 GB; install them in the server's DDR5 slots according to the Cisco population guide for the C240 M7.

Will these DDR5 4800 CL40 modules run at full speed alongside any DDR5 4800 RDIMMs already installed in the server?

Yes, matched DDR5 4800 CL40 1.1 V RDIMMs of the same rank and ECC type will operate together at the rated speed when populated per the platform rules.

After seating the four modules, how can I confirm the server recognises all 128 GB at DDR5 4800 with ECC active?

Check the BIOS memory summary or Cisco IMC inventory — it should show 128 GB total, DDR5 4800 MT/s, ECC enabled and the correct rank configuration.

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