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Two green circuit-board memory sticks with black chips and gold contacts

NEMIX RAM

NEMIX RAM 64GB (2x32GB) DDR4 3200 CL22 UDIMM for MSI MAG B550 Tomahawk MAX WiFi memory upgrade

SKU CH-MAMY-TVBAS

A 64 GB DDR4-3200 dual-channel kit with two 32 GB UDIMM modules at CL22 and 1.2 V for the MSI MAG B550 Tomahawk MAX WiFi

  • Capacity64GB (2 x 32GB)
  • SpeedDDR4 3200 (PC4 25600)
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • 64 GB dual-channel kit doubles capacity for heavy workloads
  • DDR4 3200 speed feeds data fast to the MSI MAG B550 Tomahawk MAX WiFi
  • CL22 latency keeps response tight in games and apps
  • 2 V operation lowers power draw and heat
  • 288-pin UDIMM drops straight into desktop DIMM slots

Capacity and fit

This 64 GB kit delivers two 32 GB DDR4 3200 UDIMM modules validated for the MSI MAG B550 Tomahawk MAX WiFi motherboard. The 288-pin unbuffered non-ECC design matches the board's native slot layout without requiring registered or ECC support.

Sustained workload behaviour

Modules run at 1.20 V with CL22 timing and 2Rx8 organisation using major OEM chips from Samsung Micron or Hynix. Rigorous stress testing under load confirms stability during extended compute sessions rather than brief bursts.

Installation notes

Simple desktop DIMM installation takes minutes by aligning the key notch and pressing until the retention clips engage. Builders who need ECC error correction or registered buffering cannot use this kit and should seek a different specification.

Highlights

  • 64 GB dual-channel kit doubles capacity for heavy workloads
  • DDR4 3200 speed feeds data fast to the MSI MAG B550 Tomahawk MAX WiFi
  • CL22 latency keeps response tight in games and apps
  • 2 V operation lowers power draw and heat
  • 288-pin UDIMM drops straight into desktop DIMM slots

Specifications

BrandNEMIX RAM
SeriesMSI Gaming Motherboard Compatible Series Memory
ModelMSI DDR4 3200MHZ Non-ECC Unbuffered UDIMM
Part NumberMD25600-328K2
Capacity64GB (2 x 32GB)
SpeedDDR4 3200 (PC4 25600)
ECCNo
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemMSI
CAS LatencyCL22
Heat SpreaderNo
Type288-Pin DDR4 UDIMM
Rank2Rx8
FeaturesDDR4 Non- ECC Unbuffered UDIMM Motherboard Compatible
Package Content64GB (2X32GB) DDR4 3200MHZ PC4-25600 2Rx8 1.2V CL22 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

Does the 1.2 V CL22 kit add noticeable heat or noise inside a case running all day?

The modules run at 1.20 V with no heat spreader, so they stay cool and silent under continuous load.

What must my motherboard provide for these two 32 GB sticks to work?

A board with four 288-pin DDR4 slots that accepts 3200 MT/s unbuffered non-ECC UDIMMs at 1.20 V.

Will the 2Rx8 organisation cause issues with older DDR4 memory I keep installed?

Mixing ranks can work, but stability is best when all slots use the same 2Rx8 CL22 3200 specification.

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