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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR5 4800 CL40 ECC RDIMM Cisco UCS C220 M7 memory upgrade

SKU CH-W1YQ-KC7EQ

256 GB kit of four 64 GB DDR5 4800 CL40 ECC registered DIMMs for Cisco UCS C220 M7 servers

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB total capacity for demanding server workloads
  • DDR5 4800 speed with PC5-38400 bandwidth rating
  • ECC registered RDIMM ensures data integrity under load
  • CL40 latency at 1.1 V for stable operation
  • Four 64 GB 2Rx4 modules validated for Cisco UCS C220 M7

Cisco UCS C220 M7 DDR5 kit

This 256GB kit contains four 64GB DDR5 4800 registered ECC RDIMMs built for the Cisco UCS C220 M7 rack server. The modules run at 1.1V with CL40 latency and use a 2Rx4 organisation. They are intended for IT teams upgrading memory capacity in that specific platform.

Registered ECC DDR5 4800 specification

Each module is a 288-pin DDR5 RDIMM operating at 4800 MT/s (PC5-38400) with on-die ECC and registered buffering. The 2Rx4 rank structure and 1.10V voltage match the server's qualified memory profile. This specification is the single factor that determines whether the kit will post and run without errors.

Suited for Cisco UCS C220 M7 upgrades only

The kit fits administrators expanding a Cisco UCS C220 M7 to 256GB using the validated part number MR38400-924K4. It is not for workstations or consumer motherboards that require unbuffered non-ECC memory. Builders needing different capacities, speeds or form factors should select a kit qualified for their exact system.

How it compares

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

Price $6,364.99
Pricier than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $24.86 per GB
Pricier than about 69% 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 numberMR38400-924K4
Total capacity256 GB (4 × 64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsCisco
In the box
Included items256 GB (4 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What does 4800 MT/s DDR5 mean for throughput inside a Cisco UCS C220 M7?

The kit runs at DDR5 4800 (PC5-38400) with CL40 latency, delivering the rated transfer rate when the server populates supported DIMM slots.

How does the 288-pin RDIMM interface and ECC registration affect capacity limits?

Each module is a 288-pin DDR5 RDIMM with 2Rx4 organisation and on-die ECC; the registered buffer allows the four 64 GB sticks to operate as a 256 GB kit in qualified Cisco platforms.

What physical clearance and power does the 1.1 V 288-pin kit need to seat correctly?

Modules are standard-height 288-pin DDR5 RDIMMs without heat spreaders, drawing 1.10 V; they fit the Cisco UCS C220 M7 DIMM sockets with no extra clearance required.

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