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Twelve bare green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 1.5TB (12x128GB) DDR5 4800 CL40 ECC RDIMM SuperMicro FatTwin memory upgrade

SKU CH-9G3Q-9X0WJ

1.5 TB kit of twelve 128 GB DDR5 4800 CL40 ECC RDIMM modules for SuperMicro FatTwin servers

  • Capacity1.5TB (12 x 128GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 5 TB capacity with twelve 128 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM for error-correcting server reliability
  • CL40 latency at 1.1 V operating voltage
  • Validated for SuperMicro FatTwin SYS-F521E3-RTB and SYS-F511E2-RT systems

Capacity and form factor

This kit contains twelve 128 GB DDR5 RDIMM modules for a total of 1.5 TB. The registered ECC design runs at 4800 MT/s with CL40 latency at 1.1 V. It is built for SuperMicro FatTwin SuperServer platforms including SYS-F521E3-RTB, SYS-F511E2-RT and X13SEFR-A.

Who this suits and who it does not

The 4Rx4 organisation and registered buffer target multi-socket servers that need maximum density per channel. Workstations or single-socket boards limited to lower rank counts or unbuffered DIMMs cannot use this memory. Buyers who need lower capacity per module or non-ECC operation should look elsewhere.

What the kit changes

Supplying twelve matched modules in one package removes the risk of mixing revision codes across separate purchases. The pre-validated kit simplifies population of all twelve slots in supported FatTwin nodes and ensures consistent timing across the full 1.5 TB array.

Highlights

  • 5 TB capacity with twelve 128 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM for error-correcting server reliability
  • CL40 latency at 1.1 V operating voltage
  • Validated for SuperMicro FatTwin SYS-F521E3-RTB and SYS-F511E2-RT systems

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K12
Capacity1.5TB (12 x 128GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank4Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content1.5TB (12X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Do I need a SuperMicro FatTwin server such as the SYS-F521E3-RTB or SYS-F511E2-RT to install this 12-module kit?

Yes, the kit is validated for those FatTwin SuperServer models and the X13SEFR-A motherboard, so one of those systems is required.

Can I mix these 4800 CL40 4Rx4 modules with slower DDR5 RDIMMs already in my FatTwin?

Mixing different speeds or ranks forces the memory controller to run all channels at the lowest common speed and may cause instability; matched kits are recommended.

How do I confirm the full 1.5 TB is recognised and ECC is active after installation?

Check the BIOS memory map for twelve 128 GB modules at 4800 MT/s, then verify ECC status in the OS with tools such as dmidecode or IPMI sensor readings.

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