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Two green DDR5 RDIMM modules with black chips, no heat spreader

NEMIX RAM

NEMIX RAM 32GB (2x16GB) DDR5 4800 CL40 ECC RDIMM 1Rx8 SuperMicro CloudDC SuperServer memory upgrade

SKU CH-14F2-WQ4JT

A 32 GB dual-channel DDR5 kit with ECC and registered buffering, validated for SuperMicro CloudDC SuperServer platforms

  • 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 across two 16 GB modules expands server memory for heavy workloads
  • DDR5 4800 speed with CL40 latency delivers high bandwidth for data-intensive applications
  • ECC registered design detects and corrects errors to protect mission-critical data integrity
  • 10 V operation reduces power draw while maintaining stable performance under load
  • Validated for Supermicro CloudDC SuperServer systems including SYS-621C-TN12R SYS-611C-TN4R SYS-121C-TN2R

Server memory kit for SuperMicro CloudDC

This 32GB kit uses two 16GB DDR5 4800 registered DIMMs built for SuperMicro CloudDC SuperServer platforms. ECC and registered operation protect data integrity in mission-critical workloads. The modules run at 1.1V with CL40 latency.

Replaces slower or smaller DDR5 RDIMMs

Upgrading from lower-capacity or lower-speed registered memory is worth it when virtualization density or database buffer pools hit current limits. The dual-rank 1Rx8 organisation helps fill memory channels efficiently. Systems already at maximum supported capacity or speed will not benefit.

Installs in minutes with standard DIMM slots

Align the 288-pin modules with the keyed slots and press until the latches click. Common issues include mixing registered and unbuffered DIMMs, populating slots in the wrong order for the specific motherboard, or skipping the BIOS memory training cycle after installation.

How it compares

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

Price $943.99
Pricier than about 60% 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 $29.50 per GB
Pricier than about 84% 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

Does this 288-pin DDR5 RDIMM kit fit the DIMM slots in a SuperMicro CloudDC SuperServer SYS-621C-TN12R?

Yes, the 32 GB kit is built as a matched pair of 16 GB modules specifically for the SYS-621C-TN12R, SYS-611C-TN4R and SYS-121C-TN2R platforms, so the 288-pin RDIMM form factor aligns with those server boards.

What is the correct way to seat both 1Rx8 modules so the registered ECC memory initialises without errors?

Power down the server, open the chassis, align each module's notch with the slot key, press straight down until both ejector clips click shut, then verify in BIOS that all 32 GB appear at 4800 MT/s with ECC active.

When should the DDR5 ECC RDIMM kit be replaced if correctable error counts start climbing in the system logs?

Replace the kit once the platform's memory health monitoring reports a sustained rise in correctable errors or an uncorrectable error event, as continued operation risks data integrity on the SuperMicro CloudDC SuperServer.

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