Compare 4 motherboards

Side-by-side comparison of 4 motherboards
Specification	ASUS Prime B550M-A AMD Ryzen AM4 Micro ATX Motherboard	ASUS PRO B550M-C/CSM Business Motherboard Socket AM4	GIGABYTE B550M DS3H AC R2 AMD AM4 Motherboard	ASUS PRIME B550M-K WIFI
Price (new) (differs)	£105.35as of 5 Nov, 18:20	£106.39as of 5 Nov, 18:20	£107.41as of 5 Nov, 18:20	£104.99as of 5 Nov, 18:22
RRP (differs)	not stated	£143.99	not stated	not stated
Price badge (differs)	not stated	not stated	not stated	Lowest we've recorded
First available on Amazon (differs)	Jan 2022 (4 yr 10 mo old)	Jan 2021 (5 yr 10 mo old)	Jun 2025 (1 yr 4 mo old)	Jun 2026 (5 mo old)
Brand (differs)	ASUS	ASUS	Gigabyte	ASUS
RAM slots (differs)	not stated	not stated	4	not stated
M.2 slots (differs)	2	2	2	not stated
WiFi (differs)	None named in the listing title	None named in the listing title	WiFi 5	WiFi 6
Wired LAN (differs)	1GbE	2.5GbE	1GbE	not stated
Fastest USB-C port (differs)	not stated	10 Gbps	not stated	not stated
Power phases (as stated by the maker) (differs)	not stated	not stated	5+3	not stated
Debug LED / POST code (differs)	not stated	not stated	not stated	Yes
ARGB headers (differs)	Yes	not stated	not stated	Yes
Video outputs (differs)	HDMI	HDMI, DisplayPort	HDMI, DisplayPort	HDMI, DisplayPort
Colour (differs)	not stated	not stated	not stated	Black
Amazon sales rank (differs)	#157,270	#225,157	#58,204	#1,641
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.

Find another board to compare