Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	ASUS PRIME B550M-K WIFI	MSI PRO B550M-VC WiFi ProSeries Motherboard	ASUS Prime B550M-A AC AMD AM4
Price (new) (differs)	£150.13as of 20 Sep, 06:22	£143.42as of 20 Sep, 06:20	£156.92as of 20 Sep, 06:20
Amazon Warehouse offer	not stated	not stated	not stated
RRP	not stated	not stated	not stated
Price badge (differs)	Lowest we've recorded	not stated	90-day low
First available on Amazon (differs)	Jun 2026 (3 mo old)	Sep 2022 (4 yr old)	Jul 2021 (5 yr 2 mo old)
Brand (differs)	ASUS	MSI	ASUS
Socket	AM4	AM4	AM4
Chipset	B550	B550	B550
Form factor	Micro-ATX	Micro-ATX	Micro-ATX
Memory type	DDR4	DDR4	DDR4
RAM slots	not stated	not stated	not stated
Maximum RAM	not stated	not stated	not stated
Fastest RAM speed stated (differs)	not stated	4,400 MT/s	not stated
M.2 slots (differs)	not stated	not stated	2
Newest PCIe generation stated	PCIe 4.0	PCIe 4.0	PCIe 4.0
PCIe 5.0 graphics slot	not stated	not stated	not stated
PCIe 5.0 M.2 slot	not stated	not stated	not stated
WiFi (differs)	WiFi 6	Yes (generation not stated)	Yes (generation not stated)
Bluetooth	not stated	not stated	not stated
Wired LAN (differs)	not stated	not stated	1GbE
USB4 / Thunderbolt	not stated	not stated	not stated
Fastest USB-C port	not stated	not stated	not stated
SATA ports	not stated	not stated	not stated
Power phases (as stated by the maker)	not stated	not stated	not stated
BIOS flashback	not stated	not stated	not stated
Debug LED / POST code (differs)	Yes	not stated	not stated
ARGB headers (differs)	Yes	not stated	Yes
Video outputs (differs)	HDMI, DisplayPort	HDMI, DisplayPort	HDMI
Audio codec	not stated	not stated	not stated
Colour (differs)	Black	not stated	not stated
Amazon sales rank (differs)	#1,431	#38,959	#86,197
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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