MSI PRO B550M-B vs MSI X99S XPOWER AC

A side-by-side spec comparison of the MSI PRO B550M-B and the MSI X99S XPOWER AC. We line up every specification, highlight the winner of each, and tally an overall verdict so you can decide which motherboard is right for your build.

Side-by-side specification comparison of MSI PRO B550M-B and MSI X99S XPOWER AC.
Specification	MSI PRO B550M-B $79.99 Buy on Amazon	MSI X99S XPOWER AC No price data Winner
WiFi	No	No
Socket	AM4	LGA2011-3
Chipset	B550M	Unknown
M.2 Slots	2	2
Pci Slots	2	2
Bluetooth	No	No
Max Memory	64 GB	128 GB
Form Factor	Micro-ATX	E-ATX
Memory Type	DDR4	DDR4
Memory Slots	2	8

MSI PRO B550M-B

spec won

MSI X99S XPOWER AC

specs won

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