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Two green DDR5 RDIMM modules with gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (2X128GB) DDR5 4800 CL40 1.1V 4Rx4 ECC RDIMM Cisco UCS X210c M7 memory upgrade

SKU CH-5JH9-CKAC7

Adds 256 GB of DDR5 ECC registered memory in two 128 GB modules at 4800 MT/s CL40 for the Cisco UCS X210c M7

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256GB total capacity with two 128GB modules for high-density server workloads
  • DDR5 4800 speed delivers high bandwidth for compute-intensive applications
  • ECC registered design detects and corrects memory errors to protect data integrity
  • 1V operation reduces power draw while maintaining enterprise-grade performance
  • Validated for Cisco UCS X210c M7 compute nodes ensuring drop-in compatibility

Cisco UCS X210c M7 DDR5 upgrade

This 256 GB kit uses two 128 GB DDR5 4800 CL40 modules built for the Cisco UCS X210c M7 compute node. Registered ECC RDIMM architecture and 4Rx4 organisation match the server’s memory controller requirements.

Registered ECC with 1.10 V operation

Registered buffering and on-die ECC protect data integrity in mission-critical workloads. The 1.10 V DDR5 voltage reduces power draw compared with previous DDR generations while maintaining 4800 MT/s throughput.

Tool-free DIMM installation

Modules seat in the standard 288-pin DDR5 slots of the X210c M7; no special tools or firmware updates are required. Builders who need capacities beyond 256 GB or speeds above 4800 MT/s must select a different kit.

How it compares

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

Price $8,400.99
Pricier than about 85% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $32.82 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 numberMR38400-744K2
Total capacity256 GB (2 × 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 items256 GB (2 × 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 the 288-pin DDR5 RDIMM modules need replacement if the server workload grows beyond 256GB?

The kit provides 256GB across two 128GB modules; adding capacity later depends on the Cisco UCS X210c M7's maximum supported memory and available DIMM slots.

What sustained-use limit appears first with these 4Rx4 CL40 modules running at 4800 MT/s?

The CAS latency of CL40 at DDR5 4800 sets the timing boundary; sustained throughput is governed by the registered ECC design and the memory controller's rank handling.

How much heat and power do the 1.1V registered DIMMs produce during all-day operation?

Each module operates at 1.1V without a heat spreader; total power draw scales with both 128GB 4Rx4 modules active under continuous registered ECC workloads.

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