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Green printed circuit board with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 64GB DDR5 4800 CL40 2Rx4 1.1V ECC RDIMM ASRock SIENAD10HM3 memory upgrade

SKU CH-T1Q1-3068D

64GB DDR5 4800 RDIMM with ECC and registered buffering for ASRock Rack SIENAD10HM3 servers

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

Size 64GB

Show 3 more
  • 64 GB capacity doubles memory headroom for heavy virtualization workloads
  • DDR5 4800 speed delivers 38 400 MT/s bandwidth for faster data throughput
  • CL40 latency at 1.1 V balances responsive timing with low power draw
  • 2Rx4 registered ECC architecture corrects single-bit errors and stabilises fully populated slots
  • 288-pin RDIMM form factor matches ASRock Rack SIENAD10HM3 motherboard requirements

64GB DDR5-4800 ECC RDIMM upgrade

This 64GB DDR5 module runs at 4800MHz with CL40 latency and 1.10V operation. It uses a 288-pin registered DIMM form factor with 2Rx4 organisation and on-die ECC. The memory is validated for the ASRock Rack SIENAD10HM3 motherboard.

Suited for single-slot capacity expansion

Administrators adding memory to an ASRock Rack SIENAD10HM3 system receive the exact rank, voltage and timing the board expects. Builders using consumer UDIMM or SODIMM slots, or boards that require unbuffered memory, cannot use this registered module.

Handles full-capacity population in registered

The registered architecture lets every supported slot run at 64GB without loading the memory controller. Systems limited to lower-density DIMMs or unbuffered topologies will not accept this module.

How it compares

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

Price $1,714.99
Pricier than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $26.80 per GB
Pricier than about 74% 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 numberMR38400-924K1
Total capacity64 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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock Rack
In the box
Included items64 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Does the ASRock Rack SIENAD10HM3 motherboard need DDR5 RDIMM slots to accept this 64 GB module?

Yes. The module is a 288-pin DDR5 RDIMM; the board must provide DDR5 RDIMM slots for it to seat and operate.

Can I keep my existing DDR5 4800 RDIMMs and add this 2Rx4 CL40 kit alongside them?

Mixing is possible only if the other DIMMs are also DDR5 4800 registered ECC with matching voltage and timing; otherwise the system will down-clock or fail to boot.

How do I confirm the kit is running at DDR5 4800 with ECC active after installation?

Enter the BIOS or use a hardware-information utility and verify the memory speed reads 4800 MT/s, CAS latency shows CL40 and ECC status reports enabled.

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