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Four green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 64GB (4x16GB) DDR5 4800 ECC RDIMM 1Rx8 CL40 memory upgrade

SKU CH-BA30-BZHH1

Four 16 GB DDR5 4800 ECC registered DIMMs add 64 GB of CL40 1.10 V server memory for SuperMicro CloudDC SuperServer systems

  • Capacity64GB (4 x 16GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 64GB total capacity across four 16GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design detects and corrects data errors
  • 10V operating voltage reduces server power draw
  • Validated for Supermicro CloudDC SuperServer SYS-621C-TN12R SYS-611C-TN4R SYS-121C-TN2R

SuperMicro DDR5 4800 ECC RDIMM Kit

This 64 GB kit contains four 16 GB DDR5 4800 registered DIMMs built for SuperMicro CloudDC SuperServer platforms. ECC and registered buffering protect data integrity in multi-socket server workloads. Modules operate at 1.1 V with CL40 latency and use a 1Rx8 organisation. The kit targets administrators who need validated memory for SYS-621C-TN12R, SYS-611C-TN4R or SYS-121C-TN2R systems.

Replacing slower or non-ECC DDR5 DIMMs

Upgrading from lower-speed DDR5 or unbuffered modules adds error correction and registered signalling that stabilise heavy virtualisation and database loads. The jump is worth it when the platform requires registered ECC memory and the current population leaves empty slots or runs at a slower data rate. Systems already filled with matched 4800 MT/s RDIMMs will not see a throughput gain from this kit.

Tool-free installation in minutes

DIMMs seat vertically in the 288-pin DDR5 slots; align the key notch and press until the ejectors click. Common issues include mixing ranks or voltages across channels, leaving a slot empty between populated channels, or skipping the BIOS memory training cycle after installation. Always follow the SuperMicro service guide for the correct population order.

Highlights

  • 64GB total capacity across four 16GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design detects and corrects data errors
  • 10V operating voltage reduces server power draw
  • Validated for Supermicro CloudDC SuperServer SYS-621C-TN12R SYS-611C-TN4R SYS-121C-TN2R

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-618K4
Capacity64GB (4 x 16GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank1Rx8
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content64GB (4X16GB) DDR5 4800MHZ PC5-38400 1Rx8 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will these 288-pin DDR5 RDIMMs fit the memory slots in my Supermicro CloudDC SuperServer SYS-621C-TN12R?

Yes, the kit is built for Supermicro CloudDC SuperServer SYS-621C-TN12R, SYS-611C-TN4R and SYS-121C-TN2R platforms using standard 288-pin DDR5 RDIMM slots.

What is the correct way to install the four 16 GB modules so the registered ECC memory initialises properly?

Populate all four slots identically with the 1Rx8 modules; the step often missed is ensuring each DIMM clicks fully into the 288-pin socket before locking the ejector tabs.

When should I expect to replace the 1.10 V DDR5 4800 CL40 modules under heavy server workloads?

The modules carry a lifetime replacement warranty; replacement is only needed if a module fails stress testing or develops correctable ECC errors that persist after reseating.

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