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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 256GB (4×64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-4349-EGHE6

256 GB of DDR5 4800 ECC registered memory in four 64 GB modules 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 total capacity across four 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM design for data integrity
  • CL40 latency at 1.1 V operating voltage
  • 288-pin 2Rx4 layout validated for SuperMicro SuperServer SYS-211SE systems

256 GB DDR5 4800 ECC RDIMM kit

This NEMIX RAM kit provides 256 GB of DDR5 4800 registered ECC memory in four 64 GB modules. It is built for Supermicro IoT SuperServer systems including the SYS-211SE-31DS, SYS-211SE-31AS and X31SEED-SF motherboard. The modules operate at 1.1 V with CL40 latency and use a 2Rx4 organisation. They are designed for enterprise workloads that require error correction and registered signalling.

Registered DDR5 for Supermicro servers

Each 288-pin RDIMM presents a registered load to the memory controller, reducing electrical stress on the platform. The kit plugs directly into compatible DDR5 RDIMM slots on the supported Supermicro platforms without adapters. ECC functionality protects data integrity in mission-critical environments. The absence of heat spreaders keeps the modules low-profile for dense chassis layouts.

Suited for validated Supermicro platforms

This kit suits IT teams upgrading the listed Supermicro IoT SuperServer models with a tested 256 GB configuration. Buyers needing non-ECC memory, unbuffered DIMMs or a different speed grade should look elsewhere. Systems that do not support DDR5 4800 registered ECC RDIMMs cannot use these modules. Capacity requirements above 256 GB or below 64 GB per slot are not addressed by this kit.

How it compares

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

Price $6,276.99
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 $24.52 per GB
Pricier than about 69% 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

Will the 4800 MHz DDR5 modules sustain their rated speed under continuous server workloads?

The kit runs at DDR5 4800 (PC5-38400) with CL40 timings and registered buffering, which is the JEDEC standard speed for sustained operation in compatible Supermicro systems.

How much heat and power should I expect from the 256 GB kit running 24/7?

Each 64 GB RDIMM operates at 1.10 V without a heat spreader; registered DDR5 at this voltage typically stays within normal server thermal envelopes when airflow follows the chassis design.

Which specific Supermicro platforms must I already have for this memory to function?

The kit is validated for Supermicro IoT SuperServer SYS-211SE-31DS, SYS-211SE-31AS and X31SEED-SF motherboard.

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