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Four green DDR4 UDIMM sticks without heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR4 2933 CL21 1.2V UDIMM memory upgrade

SKU CH-Y5PP-NF05H

128 GB kit of four 32 GB DDR4 2933 CL21 unbuffered UDIMMs for compatible Supermicro systems

  • Capacity128GB (4 x 32GB)
  • SpeedDDR4 2933 (PC4 23400)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 128 GB total capacity from four 32 GB modules
  • DDR4 2933 MHz speed for responsive workloads
  • CL21 latency at 1.2 V for efficient operation
  • 288-pin UDIMM form factor fits compatible Supermicro boards
  • 2Rx8 dual-rank organisation using major OEM DRAM chips

Capacity & Target System

This 128 GB kit uses four 32 GB DDR4 2933 UDIMM modules built for Supermicro workstations such as the 5039AD-I and MBD-C9X299-PGF. It suits IT professionals who need maximum non-ECC capacity on supported platforms. Unbuffered operation keeps latency low for memory-intensive workloads.

Sustained Load Behaviour

Modules run at 1.20 V with CL21 timings and 2Rx8 organisation, delivering steady throughput during long render or virtualisation sessions. Rigorous stress testing under load is performed before shipment to confirm stability. The major OEM Samsung, Micron or Hynix chips maintain consistent performance without thermal throttling.

Build & Daily Handling

Bare green PCBs without heat spreaders fit tight DIMM slots and simplify cleaning in dense server chassis. Each 288-pin UDIMM seats with standard keying for quick tool-free upgrades. Lifetime replacement coverage backs the hardware for the system's service life.

Highlights

  • 128 GB total capacity from four 32 GB modules
  • DDR4 2933 MHz speed for responsive workloads
  • CL21 latency at 1.2 V for efficient operation
  • 288-pin UDIMM form factor fits compatible Supermicro boards
  • 2Rx8 dual-rank organisation using major OEM DRAM chips

Specifications

BrandNEMIX RAM
SeriesSuperMicro Server/Workstation Compatible Series Memory
ModelSuperMicro DDR4 2933MHZ Non-ECC Unbuffered UDIMM
Part NumberMD23400-328K4
Capacity128GB (4 x 32GB)
SpeedDDR4 2933 (PC4 23400)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemSupermicro
CAS LatencyCL21
Heat SpreaderNo
Type288-Pin DDR4 UDIMM
Rank2Rx8
FeaturesDDR4 Non-ECC Unbuffered UDIMM Motherboard Compatible
Package Content128GB (4X32GB) DDR4 2933MHZ PC4-23400 2Rx8 1.2V CL21 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

Does the 1.2V DDR4 2933 kit add noticeable heat or fan noise when all four slots run all day?

These modules operate at the standard 1.20V DDR4 voltage and have no heat spreader, so thermal output is typical for unbuffered UDIMMs at this speed and density.

What must my motherboard provide for the 128GB (4x32GB) kit to function?

The board needs four 288-pin DDR4 UDIMM slots, support for 2Rx8 non-ECC unbuffered modules at 2933 MT/s, and a memory controller able to address 128GB total capacity.

Will the CL21 2Rx8 modules work alongside older DDR4 sticks I keep in the same system?

Mixing ranks, speeds or latencies can prevent the system from posting or force all memory to the lowest common settings; for stability, populate all four slots with this matched kit.

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