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Four green circuit boards with black chips and gold contacts in a clear plastic tray

NEMIX RAM

NEMIX RAM 128GB (4x32GB) DDR5 5600 CL46 1.1V UDIMM GIGABYTE B650 GamingXAX memory upgrade

SKU CH-HYF9-K673S

A 128GB kit of four 32GB DDR5 5600 CL46 UDIMM modules at 1.1V for GIGABYTE B650 GamingXAX motherboards

  • Capacity128GB (4 x 32GB)
  • SpeedDDR5 5600 (PC5 44800)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 128GB total capacity across four 32GB modules
  • DDR5 5600 speed rated at PC5-44800
  • Low 1.1V operating voltage for efficiency
  • CL46 CAS latency for responsive timing
  • Validated for Gigabyte B650 GamingXAX motherboard

128 GB DDR5 kit for Gigabyte B650 GamingXAX

This 128 GB kit contains four 32 GB DDR5 5600 CL46 UDIMM modules built for the Gigabyte B650 GamingXAX motherboard. The 2Rx8 unbuffered non‑ECC sticks run at 1.1 V and use major‑brand Samsung, Micron or Hynix chips. They install in the board’s 288‑pin DDR5 slots without a heat spreader.

Upgrade from lower capacity or slower DDR5

Replacing a smaller kit or slower DDR5 modules with this 4 x 32 GB set adds 128 GB of PC5‑44800 bandwidth at CL46 latency. The jump is worthwhile when your workload needs more simultaneous threads or larger datasets than the current memory allows. No heat spreader means clearance is not a concern.

Suits builders targeting maximum supported capacity

Ideal for users who want the full 128 GB the Gigabyte B650 GamingXAX can accept for virtualization, content creation or heavy multitasking. Buyers who need ECC error correction, registered modules, lower CAS latency or a heat spreader should look at a different memory kit.

Highlights

  • 128GB total capacity across four 32GB modules
  • DDR5 5600 speed rated at PC5-44800
  • Low 1.1V operating voltage for efficiency
  • CL46 CAS latency for responsive timing
  • Validated for Gigabyte B650 GamingXAX motherboard

Specifications

BrandNEMIX RAM
SeriesGigabyte Gaming Motherboard Compatible Series Memory
ModelGigabyte DDR5 5600MHZ Non-ECC Unbuffered UDIMM
Part NumberMD44800-328K4
Capacity128GB (4 x 32GB)
SpeedDDR5 5600 (PC5 44800)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemGIGABYTE
CAS LatencyCL46
Heat SpreaderNo
Type288-Pin DDR5 UDIMM
Rank2Rx8
FeaturesDDR5 Non-ECC Unbuffered UDIMM Motherboard Compatible
Package Content128GB (4X32GB) DDR5 5600MHZ PC5-44800 2Rx8 1.1V CL46 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

Will the 288-pin DDR5 UDIMM modules fit the four slots on my Gigabyte B650 Gaming X AX motherboard?

Yes, the kit contains four 32 GB modules built to the standard 288-pin DDR5 UDIMM form factor, which matches the four DIMM slots on that board.

What is the correct way to seat the modules so the system recognises all 128 GB at 5600 MT/s?

Align each module's notch with the slot key, press down evenly until both retention clips click, then enable the DDR5 5600 profile in the BIOS so the CL46 1.1 V timings are applied.

Do these unbuffered non-ECC sticks need any firmware updates or periodic reseating over time?

No firmware is required; the modules are validated at the factory and, once seated correctly, they run indefinitely without reseating or further maintenance.

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