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Sixteen green DDR5 RDIMM modules with black chips, no heat spreaders, 288 pins each

NEMIX RAM

NEMIX RAM 1TB (16x64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-381X-8QKXC

A 1 TB registered ECC DDR5 kit containing sixteen 64 GB modules running at 4800 MT/s with CL40 latency for Cisco UCS C240 M7 servers

  • Total capacity1 TB (16 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 1TB total capacity across 16 modules of 64GB each
  • DDR5 4800 speed rated at PC5-38400 for server workloads
  • ECC registered RDIMM design protects data integrity in critical systems
  • Low 1.10V operating voltage reduces power draw per module
  • 2Rx4 dual-rank organisation optimises density for Cisco UCS C240 M7 compatibility

Cisco UCS C240 M7 memory kit

This 1TB kit contains sixteen 64GB DDR5 ECC registered DIMMs validated for the Cisco UCS C240 M7 rack server. It targets IT teams expanding memory capacity in that specific platform. Buyers needing non-ECC desktop modules or a different server model should look elsewhere.

Installation and common issues

Modules are 288-pin DDR5 RDIMMs that seat in the server's standard DIMM slots; the supplier notes a typical upgrade takes minutes when following the owner's manual. Errors usually arise from mixing ranks, skipping the vendor's qualified vendor list, or failing to update the system BIOS before installation.

Pre-order compatibility checks

Confirm the chassis is a Cisco UCS C240 M7 and that the current BIOS revision supports 2Rx4 registered DDR5 at 4800 MT/s. Verify the memory riser population rules for sixteen modules and ensure the power budget covers 1.10V operation across all slots.

How it compares

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

Price $28,429.99
Pricier than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (16 × 64 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $28.43 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 numberMR38400-924K16
Total capacity1 TB (16 × 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 items1 TB (16 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

How can I verify the 1TB kit is running at DDR5 4800 CL40 after installation?

Check the BIOS or UEFI memory information screen — it should report 4800 MT/s speed, CL40 latency, 1.10 V voltage and registered ECC operation for all 16 modules.

What does the package contain and what must I source separately?

The box includes the 16 x 64 GB DDR5 4800 ECC RDIMM modules (part MR38400-924K16); no heat spreaders, cables or tools are supplied.

Should I choose the 16 x 64 GB kit or a different capacity for the Cisco UCS C240 M7?

The 1 TB (16 x 64 GB) kit matches the server's 16 DIMM slots and qualified 2Rx4 registered ECC specification for full population.

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