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Four green DDR5 UDIMM sticks, bare chips, no heat spreader

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 4800 CL40 1.1V 2Rx8 UDIMM SuperMicro memory upgrade

SKU CH-RFTQ-11XAV

128 GB kit of four 32 GB DDR5 UDIMM modules running at 4800 MT/s with CL40 latency and 1.1 V operation for SuperMicro workstations

  • Capacity128GB (4 x 32GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V

Capacity 128GB 4X32GB

  • 128 GB total capacity across four 32 GB modules
  • DDR5 4800 speed rated at PC5-38400 for high throughput
  • CL40 latency at 1.10 V for efficient operation
  • 2Rx8 dual-rank organisation on 288-pin UDIMM form factor
  • Validated for SuperMicro C9Z790-CGW workstation motherboards

Capacity and compatibility

This 128GB kit contains four 32GB DDR5 modules built for SuperMicro workstations and compatible motherboards such as the MBD-C9Z790-CGW. It targets professionals who need large memory capacity for virtualisation, rendering or data-analysis workloads on supported platforms.

DDR5 4800 interface limits

The modules run at DDR5 4800 (PC5-38400) with a CAS latency of CL40 and operate at 1.1V. As unbuffered non-ECC UDIMMs they rely on the memory controller of the host system, so maximum usable capacity and stability depend on the specific motherboard and CPU combination installed.

Build and daily handling

Each stick uses a 288-pin DDR5 UDIMM form factor with a 2Rx8 organisation and chips sourced from major OEM suppliers. No heat spreader is fitted, which keeps the profile low for tight slots but means airflow across the PCB becomes more important during sustained heavy loads.

Points forts

  • 128 GB total capacity across four 32 GB modules
  • DDR5 4800 speed rated at PC5-38400 for high throughput
  • CL40 latency at 1.10 V for efficient operation
  • 2Rx8 dual-rank organisation on 288-pin UDIMM form factor
  • Validated for SuperMicro C9Z790-CGW workstation motherboards

Caractéristiques

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR5 4800MHZ Non-ECC Unbuffered UDIMM
Part NumberMD38400-328K4
Capacity128GB (4 x 32GB)
SpeedDDR5 4800 (PC5 38400)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemSupermicro
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 UDIMM
Rank2Rx8
FeaturesDDR5 Non-ECC Unbuffered UDIMM Motherboard Compatible
Package Content128GB (4X32GB) DDR5 4800MHZ PC5-38400 2Rx8 1.1V CL40 288-PIN Non-ECC Unbuffered UDIMM KIT

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Questions sur cet article

Should I pick this 128GB kit or a smaller capacity for my SuperMicro workstation?

The kit supplies 128GB in four 32GB modules, filling four UDIMM slots at once. Choose it when your board supports four DIMMs and you need the full capacity; otherwise a two-module kit leaves slots open for later expansion.

What does the 4800 speed rating deliver once installed in a SuperMicro MBD-C9Z790-CGW?

The modules run at DDR5 4800 (PC5-38400) with CL40 latency at 1.10V, giving the rated bandwidth and timing the motherboard negotiates by default without manual overclocking.

Does the 288-pin DDR5 UDIMM interface limit anything on a SuperMicro C9Z790 board?

The 288-pin unbuffered non-ECC UDIMM format is the native desktop DDR5 slot type, so the board's memory controller sets the practical ceiling — no registered or ECC features are present to restrict operation.

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