MSI B450 Tomahawk board has 1 CPU fan header. 1 coolant pump/fan header, and 4 system fan headers. These are all 4 pin standard headers. So total fans you could plug in including the CPU fan is 6 (six). Hope this helps.
Answered by ChrisBFRPKY
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There are 4 connections for SYS fans on this board and 1 connection for the CPU fan.
Answered by Paul71
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