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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM MR38400-744K8 1TB (8x128GB) DDR5 4800 ECC RDIMM Cisco UCS C220 M7

SKU CH-FJ2M-M2S3K

Eight 128 GB DDR5 4800 ECC registered modules totalling 1 TB for the Cisco UCS C220 M7

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 1TB total capacity across eight 128GB modules
  • DDR5 4800 speed for high-throughput server workloads
  • ECC registered design detects and corrects data errors
  • 1V operating voltage reduces power draw per module
  • Validated for Cisco UCS C220 M7 rack servers

Capacity and Compatibility

This kit delivers 1TB of DDR5 memory across eight 128GB registered DIMMs. It is built specifically for the Cisco UCS C220 M7 rack server and operates at 4800MHz with CL40 latency. The modules run at 1.1V and include ECC error correction for data integrity.

Who This Suits

IT teams expanding memory in a Cisco UCS C220 M7 will find the 4Rx4 registered design matches the platform requirements. Administrators needing consumer DIMMs, non-ECC memory, or a different pin count should look at something else.

Sustained Load Behaviour

Each module uses major OEM DRAM from Samsung, Micron, or Hynix and is stress tested under load before shipping. The registered buffer and ECC circuitry maintain signal stability during continuous server workloads. The 1.1V operating voltage supports efficient long-duration operation.

How it compares

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

Price $32,421.99
Pricier than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $32.42 per GB
Pricier than about 90% 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 numberMR38400-744K8
Total capacity1 TB (8 × 128 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 rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsCisco
In the box
Included items1 TB (8 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will this 8-module 1TB DDR5 4800 kit fill all memory slots in a Cisco UCS C220 M7 server?

The kit contains eight 128GB 288-pin DDR5 RDIMMs, matching the maximum DIMM count supported by the Cisco UCS C220 M7 platform.

Can I mix these 1.10V CL40 4Rx4 modules with lower-capacity RDIMMs already installed in the same server?

All installed DDR5 RDIMMs must share the same 1.10V operating voltage and registered ECC design; mixing different ranks or speeds may force the memory controller to run at the lowest common settings.

How do I confirm the server recognises the full 1TB at DDR5 4800 after installation?

Check the BIOS memory information screen or the Cisco IMC inventory; both should report 1TB total capacity, 4800 MT/s speed, ECC enabled, and all eight DIMMs present.

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