Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	ASUS PRIME B550-PLUS	MSI B550-A PRO Motherboard ATX	MSI B550-A PRO ProSeries Motherboard
Price (new) (differs)	£92.66as of 20 Sep, 06:20	£89.99as of 20 Sep, 06:20	£89.64as of 20 Sep, 06:20
RRP (differs)	£124.56	£104.99	not stated
Price badge (differs)	90-day low	90-day low	30-day low
First available on Amazon (differs)	Jan 2022 (4 yr 8 mo old)	Jun 2020 (6 yr 3 mo old)	Oct 2025 (10 mo old)
Brand (differs)	ASUS	MSI	MSI
Maximum RAM (differs)	not stated	128 GB	128 GB
Fastest RAM speed stated (differs)	not stated	4,400 MT/s	4,400 MT/s
M.2 slots (differs)	2	not stated	not stated
Wired LAN (differs)	1GbE	not stated	not stated
Fastest USB-C port (differs)	10 Gbps	not stated	not stated
BIOS flashback (differs)	not stated	Yes	not stated
ARGB headers (differs)	Yes	Yes	not stated
Video outputs (differs)	not stated	HDMI	HDMI, DisplayPort
Amazon sales rank (differs)	#1,413	#1,256	#11,171
Buy	Check price on Amazon	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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