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Eight green DDR5 RDIMM modules in static bags

NEMIX RAM

NEMIX RAM 512GB (8×64GB) DDR5 4800 CL40 ECC RDIMM SuperMicro memory upgrade

SKU CH-EM1B-T8R4M

Eight 64 GB DDR5 4800 CL40 ECC registered DIMMs add 512 GB to compatible SuperMicro servers

  • Capacity512GB (8 x 64GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 512 GB total capacity from eight 64 GB modules
  • DDR5 4800 MT/s speed with PC5-38400 bandwidth
  • ECC registered RDIMM design for error-correcting stability
  • 1 V operating voltage for efficient server power use
  • Validated for SuperMicro CloudDC SuperServer 621C, 611C and 121C systems

512 GB DDR5 kit for SuperMicro servers

This kit delivers 512 GB of DDR5 4800 memory in eight 64 GB registered ECC modules built for SuperMicro CloudDC SuperServer platforms. It targets IT teams expanding memory capacity in SYS-621C-TN12R, SYS-611C-TN4R and SYS-121C-TN2R systems where registered DIMMs are required. Buyers needing unbuffered UDIMMs or non-ECC memory for consumer boards cannot use this kit.

Thermals and power at 1.1 V

Each module operates at 1.1 V with no heat spreader, relying on server chassis airflow for cooling. Registered buffering and ECC logic add minimal latency at CL40 while maintaining signal integrity across all 12 populated slots. The low voltage helps contain power draw in dense configurations. Systems without forced-air cooling or with restricted DIMM spacing may run warmer than specified.

288-pin RDIMM form factor and 2Rx4 layout

The 288-pin DDR5 RDIMM design fits SuperMicro server motherboards that support 2Rx4 registered modules. Eight modules fill 12 available slots, leaving room for future expansion within the platform's maximum capacity. Installers must follow the motherboard population guide to enable quad-channel operation. Boards limited to single-rank or x8 organisation will not accept this 2Rx4 configuration.

Puntos fuertes

  • 512 GB total capacity from eight 64 GB modules
  • DDR5 4800 MT/s speed with PC5-38400 bandwidth
  • ECC registered RDIMM design for error-correcting stability
  • 1 V operating voltage for efficient server power use
  • Validated for SuperMicro CloudDC SuperServer 621C, 611C and 121C systems

Especificaciones

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-924K8
Capacity512GB (8 x 64GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank2Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content512GB (8X64GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Preguntas sobre este artículo

How do I install the 8×64GB DDR5 4800 RDIMM kit into the SuperMicro SYS-621C-TN12R, and which step do people often miss?

Power down the server, open the chassis, align each 288-pin module with the slot key, press firmly until both retention clips click, then verify all 8 modules are detected in BIOS before closing the case.

What maintenance or replacement will the 512GB DDR5 ECC RDIMM kit need over its service life?

No routine maintenance is required; the modules have no heat spreaders or moving parts. If a module fails, replace the individual 64GB RDIMM under the lifetime replacement warranty.

What limit appears first on the 2Rx4 CL40 DDR5 4800 RDIMMs during sustained heavy workloads?

The registered buffer and CL40 latency set the throughput ceiling; sustained loads will hit the DDR5 4800 MT/s bandwidth limit before thermal throttling occurs on these bare modules.

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