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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR5 4800MHz PC5-38400 4Rx4 1.1V 288-Pin ECC RDIMM Server RAM

SKU CH-CQBF-HCQT8

512 GB DDR5 server kit in four 128 GB registered ECC RDIMMs running at 4800 MHz with CL40 latency

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 512 GB total capacity across four 128 GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth
  • ECC registered design for error correction
  • 4Rx4 rank organisation for high density
  • 10 V operation at CL40 latency

512GB DDR5 ECC Registered Kit

This 512GB kit contains four 128GB DDR5 4800MHz RDIMMs built for Dell PowerEdge R7615 rack servers. Each module runs at 1.1V with CL40 latency and uses a 4Rx4 organisation. The registered design adds a buffer that stabilises heavy memory loads in multi-socket platforms.

Suited for high-density virtualisation

Administrators expanding a R7615 to its maximum supported capacity will match the factory configuration exactly. Systems that require unbuffered UDIMMs, non-ECC memory or speeds beyond 4800MHz cannot use this kit.

Sustained load behaviour

Registered buffering and on-die ECC keep error rates low during continuous throughput workloads such as in-memory analytics or container clusters. The 1.1V operating voltage limits thermal output when all four channels are saturated for extended periods.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $15,898.99
Pricier than about 92% of the 6,523 comparable items (median $188.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 91% of the 6,064 comparable items (median 32 GB).
Price per GB $31.05 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Series Server Memory
Model nameDell Compatible DDR5 ECC Registered RDIMM
Part numberMR38400-744K4
Total capacity512 GB (4 × 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
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V

Questions about this item

What motherboard slot and voltage are required for the 288-pin DDR5 1.1V RDIMMs?

The kit uses 288-pin DDR5 RDIMM modules running at 1.1V; the motherboard must provide DDR5 RDIMM slots at that voltage.

Will the 4Rx4 registered modules work with other registered DDR5 DIMMs already in the server?

Yes, the 4Rx4 registered DDR5 4800 modules can operate alongside other registered DDR5 DIMMs if the platform supports mixed rank populations.

How can I verify the 512GB kit is running at PC5-38400 CL40 after installation?

Check the system BIOS or OS memory report for 4800 MT/s speed, CL40 latency and the full 512GB capacity across all four slots.

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