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Four bare green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 512GB (4×128GB) DDR5 4800 CL40 1.1V 4Rx4 ECC RDIMM memory upgrade

SKU CH-VEXN-GZBD5

A 512 GB kit of four 128 GB DDR5 4800 CL40 ECC registered DIMMs for Supermicro FatTwin and SuperServer systems

  • Capacity512GB (4 x 128GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 512 GB total capacity from four 128 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered design protects data integrity under load
  • 10 V operation reduces power draw per module
  • Validated for Supermicro FatTwin SuperServer SYS-F521E3-RTB and SYS-F511E2-RT

512 GB DDR5 4800 RDIMM kit

This 512 GB kit contains four 128 GB DDR5 4800 registered DIMMs built for Supermicro FatTwin and SuperServer platforms. It targets IT teams running memory-intensive workloads on validated server hardware.

ECC registered 4Rx4 modules

Each module uses 4Rx4 organisation with on-die ECC and a registered buffer to maintain signal integrity across all 288 pins. The 1.10 V operating voltage and CL40 timing match the platform specification without additional tuning.

Install in matched quad-channel sets

The four sticks must populate the correct quad-channel slots in the order shown in the Supermicro manual; mixing ranks or leaving gaps causes boot failure. No heat spreaders are fitted, so airflow across the bare PCB is required.

Highlights

  • 512 GB total capacity from four 128 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered design protects data integrity under load
  • 10 V operation reduces power draw per module
  • Validated for Supermicro FatTwin SuperServer SYS-F521E3-RTB and SYS-F511E2-RT

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K4
Capacity512GB (4 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 Content512GB (4X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the 4Rx4 rank configuration require any firmware updates or module replacements as the Supermicro platform ages?

The kit uses major OEM Samsung, Micron or Hynix chips and is stress tested under load for reliability; no maintenance schedule is defined by the manufacturer beyond standard server memory handling.

What thermal limit appears first when the 512GB DDR5 4800 CL40 kit runs continuously at 1.1V in a dense Supermicro chassis?

With no heat spreader on the 288-pin RDIMMs, the DRAM junction temperature will reach its throttle point before the registered buffer or the 1.1V power delivery does.

How much additional power draw and waste heat does the 4×128GB ECC RDIMM kit generate under sustained 4800 MT/s operation?

Each module runs at 1.1V DDR5 standard voltage; total system power scales with the 512GB capacity and 4Rx4 organisation, but exact wattage depends on the Supermicro platform memory controller.

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