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Four green DDR5 RDIMM sticks with gold contacts and black chips

NEMIX RAM

NEMIX RAM 128GB (4×32GB) DDR5 4800 CL40 1.1V ECC RDIMM SuperMicro 211SE/31AS/X31SEED-SF memory upgrade

SKU CH-2XTZ-PP9ZJ

Adds 128 GB of DDR5 ECC registered memory in four 32 GB modules running at 4800 MT/s with CL40 latency and 1.1 V operation for compatible SuperMicro servers

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB kit expands server capacity
  • DDR5 4800 speed handles heavy workloads
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw
  • Validated for SuperMicro 211SE/31AS/X31SEED-SF systems

System-specific DDR5 ECC RDIMM kit

This 128GB kit contains four 32GB DDR5 4800 registered DIMMs built for Supermicro IoT SuperServer platforms including the SYS-211SE-31DS, SYS-211SE-31AS and X31SEED-SF motherboard. Each module operates at 1.1V with CL40 latency and 1Rx4 organisation for registered ECC operation.

Thermals and power in normal use

Registered DDR5 modules at 1.1V draw modest power and run without a heat spreader, relying on chassis airflow for cooling. The lower voltage and ECC registration help maintain stable temperatures under sustained server workloads.

What the bundle changes

The four-module kit fills four slots at once, delivering 128GB of registered ECC capacity in a single matched set. This removes the need to source individual DIMMs and ensures rank and timing consistency across the populated channels.

How it compares

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

Price $3,424.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $26.76 per GB
Pricier than about 74% 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 numberMR38400-314K4
Total capacity128 GB (4 × 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 items128 GB (4 × 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 do I install the four 32 GB DDR5 RDIMMs in my SuperMicro 211SE server and what step is often missed?

Power down, open the chassis, align each 288-pin module with the keyed slot and press firmly until both latches click; the step often missed is confirming the BIOS detects all 128 GB at 4800 MT/s before closing the case

What maintenance or replacement will this 1Rx4 ECC registered kit need over its service life?

No routine maintenance is required; if a module fails the ECC logic will log correctable errors and the lifetime replacement warranty covers a swap of the defective 32 GB stick

What limit appears first when this CL40 1.1 V kit runs sustained workloads on the X31SEED-SF?

The CAS latency of 40 cycles at 4800 MT/s sets the latency floor, so memory-bound threads hit timing latency before bandwidth or thermal limits become binding

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