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Two green DDR5 RDIMM modules in a kit, no heat spreaders

NEMIX RAM

NEMIX RAM 64GB 2x32GB DDR5 4800 PC5-38400 CL40 1Rx4 ECC Registered RDIMM memory upgrade

SKU CH-BVNS-NHHWB

64 GB two-module kit of DDR5-4800 registered ECC RDIMMs tuned for the ASRock Rack GENOAD12M3-2Q motherboard

  • 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 DDR5-4800 CL40 1.1 V
  • Registered ECC design prevents silent data corruption
  • 1Rx4 Samsung Micron Hynix chips meet server specs
  • 288-pin RDIMM fits ASRock Rack GENOAD12M3-2Q
  • Lifetime warranty with US-based technical support

Exact-match DDR5-4800 ECC RDIMM kit

This 64 GB kit contains two 32 GB DDR5-4800 (PC5-38400) Registered ECC RDIMMs built to the precise 1Rx4 rank, 1.10 V voltage and CL40 timing the server memory controller expects. Modules are 288-pin RDIMMs using major OEM DRAM from Samsung, Micron or Hynix and carry no heat spreader.

Who this suits and who should look elsewhere

Suits administrators upgrading an ASRock Rack GENOAD12M3-2Q motherboard that requires Registered ECC DDR5 RDIMMs populated per the board's qualified-vendor list. Not for systems that accept only unbuffered UDIMMs, SODIMM form factors, non-ECC memory or a different DDR generation.

Installation ease and common pitfalls

Installation follows the motherboard manual's DIMM population order; the registered architecture allows full-capacity operation when every slot is filled. Common issues arise when the population sequence is ignored, when a UDIMM or SODIMM is mistakenly purchased, or when the BIOS is not updated to support the qualified memory list.

How it compares

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

Price $1,816.99
Pricier than about 67% 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 $28.39 per GB
Pricier than about 80% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

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

What motherboard slot type is required for the 288-pin RDIMM modules in this kit?

The ASRock Rack GENOAD12M3-2Q motherboard must provide 288-pin DDR5 RDIMM slots; standard UDIMM or SODIMM sockets will not accept these registered modules.

Can I mix these 1Rx4 Registered ECC DIMMs with unbuffered UDIMMs already installed in the server?

No, registered and unbuffered DIMMs cannot be mixed on the same memory controller; all populated slots must use Registered RDIMMs for the system to initialise correctly.

How can I confirm the kit is running at DDR5 4800 with CL40 timings after installation?

Enter the BIOS or use a hardware-information utility to verify the memory operates at 4800 MT/s, shows CL40 latency, and reports 64 GB total capacity with ECC active.

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