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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

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 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.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $671.99
Pricier than about 55% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $5.25 per GB
Cheaper than about 73% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineGigabyte Gaming Motherboard Compatible Series Memory
Model nameGigabyte DDR4 3200 MHz Non-ECC Unbuffered UDIMM
Part numberMD25600-328K4
Total capacity128 GB (4 × 32 GB)
Product type288-Pin DDR4 UDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsGigabyte
In the box
Included items128 GB (4 × 32 GB) DDR4 3200 MHz PC4-25600 2Rx8 1.2 V 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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