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Two green DDR5 RDIMM modules with gold contacts and black chips, no heat spreader

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR5 4800 CL40 ECC RDIMM SuperMicro memory upgrade

SKU CH-CTZX-VRKRC

64 GB DDR5 4800 ECC RDIMM kit (2 × 32 GB) validated for SuperMicro X13SEW-TF and X13SEW-F motherboards

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64 GB total capacity for demanding server workloads
  • DDR5 4800 speed with PC5-38400 bandwidth rating
  • ECC registered design protects data integrity under load
  • 10 V operation reduces power draw per module
  • Validated for SuperMicro X13SEW-TF and X13SEW-F motherboards

Capacity and configuration

This kit provides 64 GB of DDR5 memory in a matched pair of 32 GB modules. It is built for SuperMicro X13SEW-TF and X13SEW-F motherboards that require registered ECC RDIMMs.

Who this suits and who should look elsewhere

System administrators upgrading compatible SuperMicro servers or workstations will gain error-correcting registered memory at 4800 MT/s. Builders using consumer boards, non-ECC platforms or laptops cannot use these RDIMMs.

What to verify before ordering

Confirm your motherboard accepts 288-pin DDR5 RDIMMs with 1Rx4 organisation and 1.10 V operation. Check the vendor memory-qualified list for the exact part number MR38400-314K2 and ensure the BIOS revision supports this speed and capacity.

How it compares

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

Price $1,863.99
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 $29.12 per GB
Pricier than about 82% 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 lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro DDR5 4800 MHz 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
Heat spreaderNo
Memory rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items64 GB (2 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does my SuperMicro X13SEW-TF motherboard need any specific BIOS version to recognise these 2 x 32 GB DDR5 4800 RDIMMs?

The modules run at the standard 4800 MT/s JEDEC speed and 1.10 V, so a current BIOS that supports DDR5 4800 will detect them without extra steps.

Will the registered ECC design of these 288-pin DDR5 RDIMMs work with unbuffered memory I might keep in other slots?

Registered and unbuffered DIMMs cannot be mixed on the same platform; all populated slots must use registered ECC RDIMMs for the system to operate.

How can I confirm the kit is running at the rated CL40 latency after installation?

Check the memory timing readout in the BIOS or a tool such as CPU-Z; it should report 4800 MT/s with CAS latency 40 (CL40) for each 32 GB module.

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