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

NEMIX RAM

NEMIX RAM 64GB 2x32GB DDR5 4800MHz CL40 1Rx4 ECC Registered RDIMM memory upgrade

SKU CH-QA1V-T2B4Z

A 64 GB DDR5 server memory kit with two 32 GB registered ECC RDIMMs at 4800 MHz CL40 for ASRock Rack GENOA2D24G-2L+ motherboards

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 64GB 2X32GB

Show 4 more
  • Exact-match 64 GB kit runs at rated DDR5-4800 speed
  • Registered ECC design corrects single-bit errors automatically
  • 1Rx4 rank and 1.1 V timing match controller expectations
  • 288-pin RDIMM form factor fits ASRock Rack GENOA2D24G-2L+ board
  • Lifetime replacement warranty with free US-based technical support

Purpose-built server memory

This 64GB kit delivers two 32GB DDR5 RDIMMs rated at 4800MHz PC5-38400 with CL40 latency and 1.1V operation. Registered ECC architecture and 1Rx4 organisation match the exact electrical requirements of the ASRock Rack GENOA2D24G-2L+ motherboard so the memory controller recognises full capacity at rated speed without manual tuning.

Thermals and power profile

Modules run at the standard DDR5 1.1V without heat spreaders, relying on server chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller, keeping per-slot power draw low and acoustic impact negligible in typical rack environments.

Sustained-load behaviour

ECC corrects single-bit errors on the fly during continuous operation, preventing silent data corruption that can accumulate over long compute runs. Registered signalling maintains signal integrity across fully populated channels so bandwidth and latency remain stable through extended workloads rather than throttling after a short burst.

How it compares

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

Price $1,702.99
Pricier than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $26.61 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 lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR38400-314K2
Total capacity64 GB (2 × 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
Memory rank1Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock Rack
In the box
Included items64 GB 2 × 32 GB DDR5 4800 MHz PC5-38400 1Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How do I install the 288-pin RDIMM kit on the ASRock Rack GENOA2D24G-2L+ and what step is often missed?

Power down the server, open the chassis, and seat both 32 GB modules in the exact slot order shown in the motherboard manual; the step most people miss is confirming the population sequence for 1Rx4 registered DIMMs before powering on.

What maintenance or replacement will the 64 GB DDR5 ECC RDIMM kit need over its service life?

No routine maintenance is required; the modules have no heat spreaders to clean and ECC corrects single-bit errors automatically, so replacement is only needed if a DIMM fails or capacity must be increased beyond 64 GB.

What limit appears first when the 4800 MHz CL40 1.1 V registered memory runs sustained workloads?

The registered buffer and CL40 latency set the throughput ceiling, so sustained bandwidth tops out at the DDR5-4800 rating before thermal or voltage headroom becomes a factor.

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