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Two green DDR5 RDIMM modules, no heat spreaders, gold contacts visible

NEMIX RAM

NEMIX RAM 32GB (2x16GB) DDR5 4800 ECC RDIMM CL40 1.1V memory upgrade

SKU CH-391X-CHJZF

A 32 GB DDR5 registered ECC kit (2 × 16 GB) running at 4800 MT/s with CL40 timing and 1.1 V for Supermicro servers

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 32 GB capacity for demanding server workloads
  • DDR5 4800 speed with CL40 latency
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw
  • Validated for SuperMicro X13SEW motherboards

32GB DDR5 ECC RDIMM kit for SuperMicro servers

This 32 GB kit contains two 16 GB DDR5 4800 registered DIMMs built with ECC and a 1.1 V operating voltage. It targets administrators who need validated memory for SuperMicro X13SEW-TF and X13SEW-F motherboards in enterprise workloads.

288-pin registered modules require RDIMM slots

Each stick is a 1Rx8 288-pin RDIMM, so the board must provide registered DDR5 slots and a memory controller that supports ECC. The kit adds 32 GB of capacity without consuming extra DIMM positions beyond the two populated slots.

CL40 latency at 1.1 V keeps power draw low

The modules run at DDR5 4800 with CAS 40 timings at the standard 1.1 V, so thermal output remains modest during continuous server operation. No heat spreaders are fitted, relying on chassis airflow for cooling.

How it compares

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

Price $841.99
Pricier than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $26.31 per GB
Pricier than about 72% 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 numberMR38400-618K2
Total capacity32 GB (2 × 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 items32 GB (2 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the 1Rx8 ECC registered modules hit a thermal throttle limit first under sustained server loads?

The kit has no heat spreader, so sustained loads rely on chassis airflow to keep the 1.1 V DDR5 4800 modules within safe temperatures.

What noise or power change should I expect once the 32 GB kit runs all day in a Supermicro X13SEW board?

Registered DDR5 RDIMMs draw low power at 1.10 V and add no moving parts, so acoustic and thermal profiles stay identical to the existing memory population.

Which motherboard slot layout must my Supermicro X13SEW-TF already have free for this 2 x 16 GB RDIMM kit to work?

Two adjacent 288-pin DDR5 RDIMM slots are required; the board's native DDR5 controller handles the CL40 timing automatically.

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