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Green bare circuit board with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 16GB DDR4 3200 CL22 1.2V 2Rx8 288-pin UDIMM for MSI B550 Tomahawk MAX WiFi memory upgrade

SKU CH-ZP66-YJFV4

16 GB DDR4 module at 3200 MHz CL22 1.2 V 2Rx8 288-pin UDIMM for MSI B550 Tomahawk MAX WiFi

  • Total capacity16 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 16 GB DDR4 3200 MHz boosts system responsiveness
  • CL22 latency at 1.2 V keeps power draw low
  • 2Rx8 dual-rank layout improves memory throughput
  • 288-pin UDIMM fits MSI B550 Tomahawk MAX WiFi
  • Major OEM chips tested under load for stability

Compatible 16 GB DDR4 module

This 16 GB DDR4 3200 UDIMM is validated for the MSI MAG B550 Tomahawk MAX WiFi motherboard. It targets system builders and owners who want a straightforward capacity increase without tuning. The single-module design leaves remaining slots open for future expansion.

Standard UDIMM build and pinout

The module uses a 288-pin unbuffered non-ECC layout at 1.20 V with CL22 timings and a 2Rx8 organisation. No heat spreader is fitted, so clearance under large CPU coolers is maximised. Installation follows the usual desktop DIMM procedure and requires no extra configuration.

Upgrade from lower-capacity or slower DDR4

Replacing an 8 GB stick or a slower DDR4 kit with this module adds 16 GB at 3200 MT/s in one step. The jump is worthwhile when the board has a free slot and the workload benefits from extra capacity rather than tighter timings. It does not suit systems that need ECC or registered memory.

How it compares

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

Price $97.99
Cheaper than about 68% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.12 per GB
Cheaper than about 64% 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 numberMD25600-628K1
Total capacity16 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 systemsMSI
In the box
Included items16 GB (1 × 16 GB) DDR4 3200 MHz PC4-25600 2Rx8 1.2 V CL22 288-PIN Non-ECC Unbuffered UDIMM

Questions about this item

Does the DDR4 3200 PC4-25600 interface cap at 3200 MT/s on this board?

The module is rated DDR4 3200 PC4-25600, so its maximum data rate is 3200 MT/s on any compatible motherboard.

Will the 288-pin UDIMM fit the MSI MAG B550 Tomahawk MAX WiFi without a heat spreader?

Yes, the 288-pin DDR4 UDIMM matches the board's DIMM slots and the module has no heat spreader, so it clears standard CPU coolers.

What is the correct installation step for the 2Rx8 1.2 V module that builders often skip?

Insert the stick until both side latches click; many builders stop at the first click and leave the module partially seated.

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