Compare 2 motherboards

Side-by-side comparison of 2 motherboards

Specification	ASUS PRIME B550-PLUS	MSI B550-A PRO ProSeries Motherboard
Price (new) (differs)	£92.66as of 20 Sep, 06:20	£89.64as of 20 Sep, 06:20
RRP (differs)	£124.56	not stated
Price badge (differs)	90-day low	30-day low
First available on Amazon (differs)	Jan 2022 (4 yr 8 mo old)	Oct 2025 (10 mo old)
Brand (differs)	ASUS	MSI
Maximum RAM (differs)	not stated	128 GB
Fastest RAM speed stated (differs)	not stated	4,400 MT/s
M.2 slots (differs)	2	not stated
Wired LAN (differs)	1GbE	not stated
Fastest USB-C port (differs)	10 Gbps	not stated
ARGB headers (differs)	Yes	not stated
Video outputs (differs)	not stated	HDMI, DisplayPort
Amazon sales rank (differs)	#1,413	#11,171
Buy	Check price on Amazon	Check price on Amazon

Highlighted rows differ between these boards. “Not stated” means the Amazon listing does not mention it: the board may still have it, so check the maker’s specification. Power phases are printed as stated by the maker and are not comparable between brands. Prices are the new price on Amazon.co.uk at the time shown; the price on Amazon when you buy is the one that applies.

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