Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	MSI PRO B550M-P Motherboard	ASUS Prime B550M-A/CSM AMD AM4	MSI PRO B550M-P WIFI6E Motherboard
Price (new) (differs)	£85.98as of 5 Nov, 18:22	£89.54as of 5 Nov, 18:22	£89.99as of 5 Nov, 18:22
Amazon Warehouse offer (differs)	not stated	not stated	£82.72 (Used - Like New)as of 5 Nov, 18:22
RRP (differs)	not stated	not stated	£89.99
Price badge (differs)	not stated	not stated	Lowest we've recorded
First available on Amazon (differs)	Jun 2026 (4 mo old)	Jun 2020 (6 yr 4 mo old)	Jun 2026 (4 mo old)
Brand (differs)	MSI	ASUS	MSI
Socket	AM4	AM4	AM4
Chipset	B550	B550	B550
Form factor	Micro-ATX	Micro-ATX	Micro-ATX
Memory type	DDR4	DDR4	DDR4
RAM slots (differs)	4	not stated	4
Maximum RAM	not stated	not stated	not stated
Fastest RAM speed stated (differs)	4,400 MT/s	not stated	4,400 MT/s
M.2 slots (differs)	2	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)	None named in the listing title	None named in the listing title	WiFi 6E
Bluetooth (differs)	not stated	not stated	5.3
Wired LAN	1GbE	1GbE	1GbE
USB4 / Thunderbolt	not stated	not stated	not stated
Fastest USB-C port (differs)	not stated	10 Gbps	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	not stated	not stated	not stated
ARGB headers	not stated	not stated	not stated
Video outputs (differs)	not stated	HDMI	not stated
Audio codec	not stated	not stated	not stated
Colour	not stated	not stated	not stated
Amazon sales rank (differs)	#94,022	#172,396	#1,268
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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