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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 128GB (8x16GB) DDR5 4800 CL40 ECC RDIMM 1Rx8 1.1V 288-pin memory upgrade

SKU CH-8R7E-QWM9J

Eight 16 GB DDR5 registered ECC modules running at 4800 MHz CL40 and 1.1 V for Supermicro SYS-211SE and X31SEED-F servers

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB total capacity across eight 16 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM design protects data integrity
  • Low 1.10 V operating voltage reduces power draw
  • Validated for SuperMicro IoT SuperServer SYS-211SE platforms

Server-grade ECC RDIMM kit

This NEMIX RAM kit delivers 128GB of DDR5 registered ECC memory across eight 16GB modules. It is built for Supermicro IoT SuperServer platforms such as the SYS-211SE-31D, SYS-211SE-31A and X31SEED-F motherboard. System administrators handling virtualisation, database or high-throughput workloads gain the error-correcting stability these environments demand.

Registered DDR5 4800 CL40 at 1.1V

Each 288-pin RDIMM runs at DDR5 4800 (PC5-38400) with a CAS latency of CL40 and a single-rank 1Rx8 organisation. The registered buffer and on-die ECC protect data integrity under sustained load, while the 1.1V operating voltage matches the platform specification. Builders who need unbuffered UDIMMs or a different speed grade cannot use this kit.

Eight matched modules in one package

The kit ships as a single 8×16GB set, so every module shares the same Samsung, Micron or Hynix die revision and timing profile. This eliminates the mixing risk that can cause boot failures or silent corruption in multi-channel server boards. No heat spreaders are included, relying on chassis airflow instead.

How it compares

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

Price $3,670.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $28.68 per GB
Pricier than about 81% 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 numberMR38400-618K8
Total capacity128 GB (8 × 16 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 rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items128 GB (8 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How does the DDR5 4800 CL40 rating translate to real-world throughput in a server?

The modules run at 4800 MT/s with CL40 latency, delivering the standard DDR5 4800 bandwidth per channel when installed in a compatible Supermicro system.

What does the PC5-38400 designation mean for memory speed?

PC5-38400 is the industry label for DDR5 4800, confirming the kit operates at the 4800 MT/s data rate with 1.10V voltage.

Will these 288-pin RDIMMs fit in the SuperMicro SYS-211SE-31D?

Yes, the kit is validated for SuperMicro IoT SuperServer SYS-211SE-31D, SYS-211SE-31A and X31SEED-F motherboards using standard 288-pin DDR5 RDIMM slots.

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