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Four green DDR4 UDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 32GB (4x8GB) DDR4 3200 CL22 UDIMM for MSI MAG B550 Tomahawk MAX WiFi memory upgrade

SKU CH-FAJJ-K9TSF

A 32 GB DDR4 kit of four 8 GB UDIMMs at 3200 MT/s CL22 1.20 V, validated for the MSI MAG B550 Tomahawk MAX WiFi motherboard

  • Total capacity32 GB (4 × 8 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 32 GB capacity with four 8 GB modules for full-slot population
  • DDR4 3200 speed rated at PC4-25600 for responsive desktop performance
  • CL22 latency at 1.20 V standard voltage for stable operation
  • 288-pin unbuffered non-ECC UDIMM form factor fits standard desktop DIMM slots
  • Tested compatible with MSI MAG B550 Tomahawk MAX WiFi motherboard

Targeted upgrade for MSI MAG B550 Tomahawk MAX WiFi

This 32 GB kit contains four 8 GB DDR4 UDIMM modules built specifically for the MSI MAG B550 Tomahawk MAX WiFi motherboard. It suits owners of that board who need the full 32 GB capacity in a matched set.

The deciding specification is DDR4 3200 CL22 1.20

The modules run at 3200 MT/s with a CAS latency of 22 at the standard 1.20 V. They are 1Rx8 single-rank, 288-pin, non-ECC unbuffered DIMMs, so the board must accept that exact speed, voltage and timing combination.

Installation is a simple DIMM-slot insertion

The sticks have no heat spreader, so they fit tight clearances, but all four slots must be populated to reach 32 GB. Buyers who want more storage or a different memory generation cannot use this kit.

How it compares

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

Price $204.99
Cheaper than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (4 × 8 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $6.41 per GB
Cheaper than about 61% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineMSI Gaming Motherboard Compatible Series Memory
Model nameMSI DDR4 3200 MHz Non-ECC Unbuffered UDIMM
Part numberMD25600-818K4
Total capacity32 GB (4 × 8 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 rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsMSI
In the box
Included items32 GB (4 × 8 GB) DDR4 3200 MHz PC4-25600 1Rx8 1.2 V CL22 288-PIN Non-ECC Unbuffered UDIMM KIT

Questions about this item

What does the 3200 speed rating mean once the kit is installed in the MSI MAG B550 Tomahawk MAX WiFi?

The modules run at DDR4 3200 (PC4 25600) and will operate at that frequency if the motherboard enables the matching profile; otherwise they fall back to the board's default DDR4 speed.

How does the DDR4 interface and CL22 latency affect real-world throughput on this board?

The 288-pin DDR4 UDIMM interface caps transfer rates to the DDR4 3200 standard, and CL22 sets the minimum column-access delay at that speed.

What physical clearance does the 4 x 8 GB kit need to fit the four DIMM slots on the MSI MAG B550 Tomahawk MAX WiFi?

Each stick is a standard-height 288-pin UDIMM without a heat spreader, so it fits the board's four slots even with large CPU coolers.

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