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Eight green DDR5 RDIMM modules with gold contacts and black chips

NEMIX RAM

NEMIX RAM 128GB (8x16GB) DDR5 4800 CL40 ECC RDIMM Cisco UCS C240 M7 memory upgrade

SKU CH-RNEM-M2270

Eight 16 GB DDR5 ECC RDIMM modules at 4800 MT/s CL40 add 128 GB of registered server memory for the Cisco UCS C240 M7

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB total capacity from eight 16 GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth for server workloads
  • ECC registered RDIMM design protects data integrity under load
  • 1 V operation at CL40 latency for efficient performance
  • Validated compatibility with Cisco UCS C240 M7 rack servers

Cisco UCS C240 M7 server upgrade

This 128GB kit delivers eight 16GB DDR5 4800 CL40 registered ECC modules built for the Cisco UCS C240 M7 rack server. It targets IT teams expanding memory capacity in production environments where data integrity and uptime are mandatory.

Build integration requirements

The modules use 288-pin DDR5 RDIMM form factor and operate at 1.1V with a 1Rx8 rank configuration. They require a motherboard that supports registered ECC DDR5 at PC5-38400 speed and must populate all eight slots to reach the full 128GB capacity.

Replacing slower or smaller kits

The upgrade replaces lower-capacity or lower-speed DDR5 RDIMM sets that limit virtualisation density or database buffer sizes. The jump is worth it when workloads exceed current memory headroom and the platform qualifies for PC5-38400 registered ECC operation.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $3,229.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $25.23 per GB
Pricier than about 70% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineCisco Server Compatible Series Memory
Model nameCisco DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-618K8
Total capacity128 GB (8 × 16 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsCisco
In the box
Included items128 GB (8 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the 1.10V operating voltage keep thermals manageable in a fully populated Cisco UCS C240 M7 chassis?

The modules run at 1.10 V with no heat spreaders, so airflow through the server's front-to-rear cooling path is the primary thermal control.

What is the sustained power draw per DIMM when all eight slots are loaded at 4800 MT/s?

Each 1Rx8 RDIMM is rated at 1.1 V; total kit capacity is 128 GB across eight 16 GB modules, and the registered buffer adds minimal overhead versus unbuffered DDR5.

Does the Cisco UCS C240 M7 require a specific BIOS revision or CPU stepping before this 8-module kit will post at 4800 MT/s CL40?

The kit is validated for the Cisco UCS C240 M7 platform; installed modules appear as 288-pin DDR5 RDIMMs with ECC and register, matching the server's memory subsystem requirements.

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