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Four green DDR5 RDIMM modules, no heat spreaders, 288-pin gold contacts, 64GB kit

NEMIX RAM

NEMIX RAM 64GB (4x16GB) DDR5 4800 CL40 1Rx8 1.1V ECC RDIMM Cisco UCS C220 M7 memory upgrade

SKU CH-0K57-QS6WE

A 64 GB DDR5 ECC registered kit of four 16 GB modules running at 4800 MT/s CL40 and 1.1 V, built for the Cisco UCS C220 M7 server

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64 GB total capacity from four 16 GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth rating
  • ECC registered RDIMM ensures data integrity under load
  • Low 1.10 V operation reduces server power draw
  • Validated for Cisco UCS C220 M7 rack server

Cisco UCS C220 M7 memory kit

This 64 GB kit contains four 16 GB DDR5 modules built for the Cisco UCS C220 M7 rack server. Each stick is an ECC registered RDIMM that runs at 4800 MT/s with CL40 latency. The kit targets administrators who need validated capacity for virtualisation or database workloads on that platform.

DDR5 4800 registered ECC limits

Registered DDR5 at 4800 MT/s adds a clock cycle for the register, so latency sits at CL40 and bandwidth peaks at PC5-38400. The 1.1 V operating voltage is fixed by the DDR5 standard, and the 288-pin RDIMM form factor only fits slots wired for registered memory. Unbuffered or non-ECC modules will not work in this server.

1Rx8 organisation decides fit

Each 16 GB module uses a single-rank 1Rx8 layout, giving four ranks per channel when the kit is fully populated. Cisco's memory population rules for the C220 M7 require this rank-per-channel count to reach the rated speed. Builders who need a different rank structure or higher density per DIMM must choose another part.

How it compares

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

Price $1,803.99
Pricier than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $28.19 per GB
Pricier than about 79% 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 numberMR38400-618K4
Total capacity64 GB (4 × 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 items64 GB (4 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I pick the 4x16GB kit or a different capacity for my Cisco UCS C220 M7?

This kit supplies 64GB across four 16GB modules, matching the server's DDR5 RDIMM slots and registered ECC requirements.

What does the 4800 speed rating deliver inside the C220 M7?

The modules run at DDR5 4800 with CL40 latency at 1.10V, providing the rated bandwidth when the platform operates at its native memory speed.

How does the 288-pin DDR5 RDIMM interface limit performance in this server?

The registered 288-pin DDR5 form factor caps operation to the platform's supported DDR5 4800 transfer rate and registered ECC protocol.

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