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Twelve green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 384GB (12x32GB) DDR5 4800 CL40 ECC RDIMM Cisco UCS C220 M7 memory upgrade

SKU CH-NCXT-3QV8C

A 384 GB DDR5 4800 CL40 ECC registered server memory kit containing twelve 32 GB modules at 1.1 V for the Cisco UCS C220 M7 rack server

  • Total capacity384 GB (12 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 384 GB total capacity from twelve 32 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM protects data integrity
  • Single-rank 1Rx4 organisation at CL40 latency
  • Low 1.10 V operating voltage for efficiency

System-Specific DDR5 Kit

This 384 GB kit contains twelve 32 GB DDR5 4800 CL40 registered ECC RDIMMs built for the Cisco UCS C220 M7 rack server. IT teams order it when the platform needs maximum supported capacity for virtualisation, databases or container workloads. The modules run at 1.1 V and use 1Rx4 organisation.

Sustained-Load Behaviour

Registered buffering and on-die ECC keep data integrity intact during continuous read-write cycles typical of hypervisor hosts. The 1.1 V operating voltage limits thermal output per module, helping the server’s airflow design maintain stable temperatures over long production shifts. CL40 latency is the standard JEDEC timing for this speed grade.

Upgrade Scope

The kit replaces any smaller-capacity DDR5 RDIMM population in the C220 M7, moving the system to its full 384 GB limit in a single step. The jump is worthwhile when current memory pressure forces paging or constrains VM density. Buyers who need a different form factor, non-ECC modules or a lower total capacity should look elsewhere.

How it compares

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

Price $10,922.99
Pricier than about 88% of the 21,161 comparable items (median $397.99).
Total capacity 384 GB (12 × 32 GB)
Higher than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $28.45 per GB
Pricier than about 80% 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 numberMR38400-314K12
Total capacity384 GB (12 × 32 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 rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsCisco
In the box
Included items384 GB (12 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How much power does the 1.10V DDR5 4800 kit draw when the server runs continuously?

Each 32GB module operates at 1.10V; total draw depends on how many of the 12 slots the Cisco UCS C220 M7 populates and the workload, so consult the platform's power calculator for exact watts.

What must the Cisco UCS C220 M7 already have to accept this 12 x 32GB RDIMM kit?

The server needs 12 free 288-pin DDR5 RDIMM slots and a BIOS that supports 1Rx4 registered ECC modules at 4800 MT/s; no extra hardware is required beyond the chassis itself.

Will these CL40 1Rx4 modules work alongside any existing DDR5 RDIMMs already installed in the C220 M7?

Mixing ranks, latencies or voltages can prevent the server from posting; for guaranteed stability, populate all 12 slots with this matched 384GB kit rather than combining with older sticks.

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