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Sixteen green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 512GB (16×32GB) DDR5 4800 CL40 ECC RDIMM SuperMicro memory upgrade

SKU CH-Y43A-V1YEF

A 512 GB DDR5 registered ECC kit with sixteen 32 GB modules at 4800 MT/s CL40 for SuperMicro servers

  • Total capacity512 GB (16 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 512 GB total capacity across 16 modules of 32 GB each
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered RDIMM design protects data integrity
  • 1 V operation reduces power draw in dense configurations
  • Validated for SuperMicro Hyper SuperServer SYS-121H-TNR SYS-221H-TNR SYS-221H-TN24R

512GB DDR5 4800 ECC RDIMM kit for SuperMicro servers

This 512GB kit contains sixteen 32GB DDR5 4800 registered DIMMs with ECC. It is built for SuperMicro Hyper SuperServer SYS-121H-TNR, SYS-221H-TNR and SYS-221H-TN24R systems that require registered memory.

IT teams maximising memory capacity in compatible

The 1Rx4 organisation and CL40 latency suit workloads that need large memory footprints with error correction. Sites that need unbuffered DIMMs, lower voltages, different pin counts or smaller total capacities should select a different kit.

288-pin DDR5 RDIMM form factor

Each module uses the standard 288-pin DDR5 RDIMM layout at 1.1V. The registered buffer and on-die ECC are mandatory for the target SuperMicro platforms; systems that accept only UDIMM or LRDIMM modules cannot use this kit.

How it compares

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

Price $15,350.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (16 × 32 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $29.98 per GB
Pricier than about 85% 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 numberMR38400-314K16
Total capacity512 GB (16 × 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 items512 GB (16 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Will the 288-pin DDR5 RDIMM modules fit the memory slots on my SuperMicro Hyper SuperServer SYS-121H-TNR?

Yes, the kit uses the standard 288-pin DDR5 RDIMM form factor that matches the DIMM slots on the listed SuperMicro systems.

What is the correct order to populate the 16 modules across the CPU channels?

Follow the SuperMicro motherboard manual for the specific population sequence; the common mistake is skipping a required slot or mixing ranks across channels.

When should I consider replacing one of the 32 GB modules in this 512 GB kit?

Replace a module if the system BIOS or OS reports uncorrectable ECC errors tied to a specific DIMM during sustained operation.

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