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Eight green DDR5 RDIMM modules in static bags

NEMIX RAM

NEMIX RAM 256GB (8 x 32GB) DDR5 4800 CL40 1.1V ECC RDIMM memory upgrade

SKU CH-DK9V-CSQKW

256 GB DDR5 kit of eight 32 GB registered ECC modules at 4800 MT/s, CL40, 1.1 V, 288-pin RDIMM for Cisco UCS C240 M7 rack servers

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256GB total capacity across eight 32GB modules for dense server workloads
  • DDR5 4800 speed with PC5-38400 bandwidth for high-throughput applications
  • ECC registered RDIMM design with CL40 latency ensures data integrity
  • 1V operation reduces power draw in Cisco UCS C240 M7 racks
  • 288-pin 1Rx4 Samsung Micron Hynix chips validated for mission-critical stability

Cisco UCS C240 M7 memory kit

This 256GB kit contains eight 32GB DDR5 RDIMM modules built for the Cisco UCS C240 M7 rack server. Each module is registered and ECC-enabled to maintain data integrity under continuous enterprise workloads. The kit arrives new and ready for installation in compatible memory slots.

DDR5 4800 registered ECC limits

Registered DDR5 at 4800 MT/s with CL40 latency operates at the JEDEC base speed for this generation. The registered buffer adds one clock cycle of address-command delay, which stabilises large populations but caps peak throughput compared to unbuffered alternatives. ECC overhead consumes a portion of raw bandwidth for error correction.

256GB capacity and headroom

Eight ranks of 1Rx4 DRAM deliver 256GB total capacity, allowing large virtualisation clusters or in-memory databases to scale within a single chassis. The 1.1V operating voltage reduces power draw per gigabyte, yet the fixed eight-module population leaves no free slots for further expansion without replacing the kit.

How it compares

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

Price $6,760.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $26.41 per GB
Pricier than about 73% 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 numberMR38400-314K8
Total capacity256 GB (8 × 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 items256 GB (8 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I pick the 256GB kit or a smaller capacity for my Cisco UCS C240 M7?

This kit provides 256GB across eight 32GB modules, filling eight DIMM slots for maximum supported capacity in the Cisco UCS C240 M7.

What does the 4800 speed rating deliver in this server?

The modules run at DDR5 4800 (PC5-38400) with CL40 latency, giving the rated bandwidth and timing the Cisco platform expects for stable operation.

Is the 288-pin RDIMM interface the right fit for my Cisco UCS C240 M7?

Yes, these are 288-pin DDR5 RDIMM registered ECC modules at 1.1V, matching the Cisco UCS C240 M7 memory slot and voltage requirements.

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