Compare 4 motherboards

Side-by-side comparison of 4 motherboards
Specification	MSI PRO B550M-P Motherboard	ASUS PRIME B550M-A	MSI B550M PRO-VDH WIFI Motherboard M-ATX	ASUS PRIME B550M-A WIFI II
Price (new) (differs)	£89.99as of 20 Sep, 02:43	£89.99as of 20 Sep, 02:41	£89.99as of 20 Sep, 02:41	£87.99as of 20 Sep, 02:41
Amazon Warehouse offer	not stated	not stated	not stated	not stated
RRP (differs)	£84.99	£93.86	£109.99	£130.99
Price badge (differs)	not stated	not stated	30-day low	not stated
First available on Amazon (differs)	Jun 2026 (2 mo old)	Jan 2022 (4 yr 8 mo old)	Jun 2020 (6 yr 3 mo old)	Dec 2021 (4 yr 9 mo old)
Brand (differs)	MSI	ASUS	MSI	ASUS
Socket	AM4	AM4	AM4	AM4
Chipset	B550	B550	B550	B550
Form factor	Micro-ATX	Micro-ATX	Micro-ATX	Micro-ATX
Memory type	DDR4	DDR4	DDR4	DDR4
RAM slots (differs)	not stated	not stated	not stated	4
Maximum RAM (differs)	not stated	not stated	128 GB	not stated
Fastest RAM speed stated (differs)	not stated	not stated	4,400 MT/s	not stated
M.2 slots (differs)	not stated	2	not stated	2
Newest PCIe generation stated	PCIe 4.0	PCIe 4.0	PCIe 4.0	PCIe 4.0
PCIe 5.0 graphics slot	not stated	not stated	not stated	not stated
PCIe 5.0 M.2 slot	not stated	not stated	not stated	not stated
WiFi (differs)	None named in the listing title	None named in the listing title	WiFi 6	WiFi 6
Bluetooth	not stated	not stated	not stated	not stated
Wired LAN (differs)	not stated	1GbE	not stated	1GbE
USB4 / Thunderbolt	not stated	not stated	not stated	not stated
Fastest USB-C port	not stated	not stated	not stated	not stated
SATA ports	not stated	not stated	not stated	not stated
Power phases (as stated by the maker)	not stated	not stated	not stated	not stated
BIOS flashback (differs)	not stated	not stated	Yes	not stated
Debug LED / POST code	not stated	not stated	not stated	not stated
ARGB headers (differs)	not stated	Yes	Yes	Yes
Video outputs (differs)	not stated	not stated	not stated	HDMI
Audio codec	not stated	not stated	not stated	not stated
Colour	not stated	not stated	not stated	not stated
Amazon sales rank (differs)	#4,931	#1,413	#4,651	#1,413
Buy	Check price on Amazon	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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