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Twelve green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 768GB (12×64GB) DDR5 4800 CL40 ECC RDIMM SuperMicro FatTwin X13SEFR-A memory upgrade

SKU CH-7Z3P-FZ751

12-module 768 GB DDR5 4800 CL40 ECC registered RDIMM kit validated for SuperMicro FatTwin X13SEFR-A servers

  • Capacity768GB (12 x 64GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 768 GB total capacity from twelve 64 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered RDIMM design protects data integrity
  • 1 V operation reduces power draw at scale
  • Qualified for Supermicro FatTwin X13SEFR-A systems

768GB DDR5 ECC RDIMM kit

This NEMIX RAM kit delivers 768GB of DDR5 memory across twelve 64GB modules. It is built for SuperMicro FatTwin SuperServer systems including the SYS-F521E3-RTB and SYS-F511E2-RT. The registered ECC design targets enterprise workloads that require data integrity and high capacity.

Registered 2Rx4 organisation at 4800 MT/s

Each module operates at DDR5 4800 (PC5-38400) with CL40 latency and 1.10V voltage. The 2Rx4 rank configuration and registered buffer reduce electrical load on the memory controller, allowing all twelve 288-pin RDIMMs to run together in the supported SuperMicro X13SEFR-A platform.

Suited for IT teams scaling FatTwin density

This kit fits administrators who need the full 768GB population for virtualisation, database or HPC nodes on the listed SuperMicro servers. It is not for desktop or workstation boards that only accept unbuffered UDIMMs, nor for systems limited to fewer than twelve slots or lower maximum capacity.

Highlights

  • 768 GB total capacity from twelve 64 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered RDIMM design protects data integrity
  • 1 V operation reduces power draw at scale
  • Qualified for Supermicro FatTwin X13SEFR-A systems

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-924K12
Capacity768GB (12 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 Content768GB (12X64GB) DDR5 4800MHZ PC5-38400 2Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What does the 4800 speed rating mean for throughput in a SuperMicro FatTwin X13SEFR-A server?

DDR5-4800 (PC5-38400) sets the data rate at 4800 MT/s; with twelve 64 GB modules installed the memory subsystem can move data at the full rated speed across all populated channels.

How does the 288-pin ECC RDIMM interface limit memory capacity or speed in this platform?

The 288-pin registered DIMM slots on the X13SEFR-A accept only DDR5 RDIMMs; each slot is capped at DDR5-4800, so the kit cannot exceed that speed and total capacity is limited to the number of slots the board provides.

What physical space and power does the 12-module kit need inside the FatTwin chassis?

Twelve 288-pin RDIMMs occupy twelve DIMM slots and draw 1.10 V each; the modules have no heat spreaders, so they fit standard server DIMM spacing without extra clearance.

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