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Four green DDR5 RDIMM sticks, black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (4×64GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-W6YY-7W7PA

256GB kit of four 64GB DDR5 4800 ECC registered DIMMs for Supermicro servers

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB capacity across four 64 GB modules for large memory footprints
  • DDR5 4800 speed delivers high data throughput for demanding workloads
  • ECC registered design detects and corrects errors to protect data integrity
  • 1 V operation reduces power draw in dense server configurations
  • Validated for SuperMicro X13SEW-TF and X13SEW-F motherboards for guaranteed compatibility

256GB DDR5 ECC RDIMM kit

This NEMIX RAM kit delivers 256 gigabytes across four 64-gigabyte DDR5 4800 registered DIMMs. ECC and registered buffering protect data integrity in mission-critical workloads. Modules run at 1.1 volts with CL40 latency and use major OEM chips from Samsung Micron or Hynix. The 288-pin form factor fits Supermicro X13SEW-TF and X13SEW-F motherboards.

Suited for high-density server upgrades

IT teams expanding memory on compatible Supermicro platforms will find the density and error correction they need. Builders who require unbuffered UDIMMs or non-ECC memory for consumer boards cannot use this registered kit. Systems limited to lower capacities or different pin layouts should look elsewhere.

Registered ECC DDR5 at 4800 MT/s

The decisive specification is the registered ECC DDR5 4800 speed with 2Rx4 organisation. This combination determines whether the motherboard and CPU memory controller can initialise the kit at full capacity and stability.

How it compares

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

Price $6,662.99
Pricier than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $26.03 per GB
Pricier than about 71% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-924K4
Total capacity256 GB (4 × 64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB (4 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the 256GB kit contain four 64GB modules or do I need to buy extra sticks?

The kit ships with four 64GB DDR5 RDIMMs, giving 256GB total capacity in one package.

Should I pick the 4800MT/s CL40 2Rx4 registered kit or a different speed for my SuperMicro X13SEW board?

This 4800MT/s CL40 2Rx4 registered kit matches the SuperMicro X13SEW-TF and X13SEW-F qualified memory list.

Will the rated 4800MT/s PC5-38400 speed run at that frequency once installed in the server?

The modules operate at DDR5 4800 (PC5-38400) with CL40 latency at 1.10V when the motherboard applies the correct profile.

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