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Twelve green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 384GB 12x32GB DDR5 4800 CL40 1.1V ECC RDIMM SuperMicro SYS-221HE memory upgrade

SKU CH-FJYH-5CX2X

A 384 GB DDR5 ECC registered memory kit with twelve 32 GB modules at 4800 MT/s CL40 for SuperMicro SYS-221HE servers

  • Total capacity384 GB (12 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 384GB capacity across 12 modules expands server memory headroom
  • DDR5 4800 speed with CL40 latency supports high-throughput workloads
  • ECC registered design detects and corrects data errors automatically
  • 10V operation reduces power draw in dense configurations
  • Validated for SuperMicro SYS-221HE series ensures drop-in compatibility

System-Specific DDR5 Server Memory Kit

This 384GB kit contains twelve 32GB DDR5 4800 RDIMM modules built for the SuperMicro IOT SuperServer SYS-221HE series. It targets IT professionals who need validated ECC registered memory for mission-critical enterprise workloads. The 1Rx4 organisation and CL40 latency match the platform's qualified specifications.

Registered ECC Modules for Dense Configurations

Each 288-pin DIMM operates at 1.10V and installs directly into the server's memory slots without extra cabling or adapters. The registered buffer reduces electrical load on the memory controller, allowing all twelve modules to run simultaneously. No heat spreaders are fitted, so airflow follows the chassis designer's original path.

Twelve-Module Kit Simplifies Procurement

The package delivers the full 384GB capacity in a single matched set, eliminating the need to source individual sticks or verify mixed-date codes. Modules are stress-tested under load before shipping to confirm stability in the qualified SuperMicro systems. This reduces deployment time for administrators scaling memory across multiple nodes.

How it compares

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

Price $9,999.99
Pricier than about 87% of the 21,161 comparable items (median $397.99).
Total capacity 384 GB (12 × 32 GB)
Higher than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $26.04 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 numberMR38400-314K12
Total capacity384 GB (12 × 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 items384 GB (12 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How many modules must the SuperMicro SYS-221HE accept to reach the full 384 GB capacity?

The kit contains 12 modules of 32 GB each, so the server needs 12 available DDR5 RDIMM slots to use the full capacity.

What is the power draw per module at the rated 1.1 V operating voltage?

Each 32 GB RDIMM runs at 1.1 V; total kit power will depend on the server's memory subsystem load and the number of ranks active.

Which server models are explicitly listed as compatible with this 288-pin DDR5 RDIMM kit?

The kit is validated for SuperMicro IOT SuperServer SYS-221HE-FTNR, SYS-221HE-FTNRD and SYS-221HE-TNR.

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