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Four green DDR4 UDIMM sticks without heat spreaders

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR4 3200 CL22 UDIMM memory upgrade

SKU CH-FJ05-V63ET

128 GB DDR4 kit in four 32 GB UDIMM modules at 3200 MT/s CL22 for Gigabyte B550-AORUS motherboards

  • Capacity128GB (4 x 32GB)
  • SpeedDDR4 3200 (PC4 25600)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 128 GB total capacity from four 32 GB modules
  • DDR4 3200 speed rated at PC4-25600 bandwidth
  • CL22 CAS latency for responsive desktop operation
  • 2 V low-voltage design reduces power draw
  • Validated for Gigabyte B550 AORUS motherboard compatibility

Capacity and configuration

This kit provides 128 GB of DDR4 memory in four 32 GB modules. It is intended for desktop systems that use 288-pin UDIMM slots and benefit from high-density unbuffered memory.

Build integration

The modules operate at 3200 MT/s with CL22 timings at 1.2 V and require no heat spreader. They are validated for compatibility with Gigabyte B550-AORUS motherboards and use major-brand DRAM chips in a 2Rx8 organisation.

Suitability and limits

This kit suits builders upgrading a supported Gigabyte platform to the maximum mainstream DDR4 capacity. It is not for systems that require ECC, registered modules, lower-density sticks, or platforms limited to slower DDR4 speeds.

Highlights

  • 128 GB total capacity from four 32 GB modules
  • DDR4 3200 speed rated at PC4-25600 bandwidth
  • CL22 CAS latency for responsive desktop operation
  • 2 V low-voltage design reduces power draw
  • Validated for Gigabyte B550 AORUS motherboard compatibility

Specifications

BrandNEMIX RAM
SeriesGigabyte Gaming Motherboard Compatible Series Memory
ModelGigabyte DDR4 3200MHZ Non-ECC Unbuffered UDIMM
Part NumberMD25600-328K4
Capacity128GB (4 x 32GB)
SpeedDDR4 3200 (PC4 25600)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemGigabyte
CAS LatencyCL22
Heat SpreaderNo
Type288-Pin DDR4 UDIMM
Rank2Rx8
FeaturesDDR4 Non- ECC Unbuffered UDIMM Motherboard Compatible
Package Content128GB (4X32GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V CL22 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

Will the 1.2 V DDR4 3200 kit run stable all day without overheating?

The modules run at the standard 1.20 V DDR4 voltage and carry no heat spreader, so case airflow must handle the heat produced by four 32 GB sticks under continuous load.

What motherboard slot and channel layout are required for the 4×32 GB kit to operate at 3200 MT/s CL22?

A Gigabyte B550-AORUS board with four 288-pin DDR4 UDIMM slots is needed; populating all four slots lets the memory controller run the 2Rx8 modules at the rated 3200 speed and CL22 timing.

Does the system need to support non-ECC unbuffered DDR4 for this 128 GB kit to work?

Yes — the kit is non-ECC unbuffered DDR4, so the motherboard and CPU must accept standard desktop UDIMM memory; server or ECC-only platforms will not boot with these modules.

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