Compare 2 motherboards

Side-by-side comparison of 2 motherboards

Specification	MSI B550-A PRO Motherboard ATX	MSI B550 GAMING Motherboard
Price (new) (differs)	£103.98as of 5 Nov, 18:21	£99.98as of 5 Nov, 18:22
Amazon Warehouse offer (differs)	£85.94 (Used - Good)as of 5 Nov, 18:21	not stated
RRP (differs)	£104.99	£109.99
Price badge	not stated	not stated
First available on Amazon (differs)	Jun 2020 (6 yr 4 mo old)	Jun 2026 (4 mo old)
Brand	MSI	MSI
Socket	AM4	AM4
Chipset	B550	B550
Form factor	ATX	ATX
Memory type	DDR4	DDR4
RAM slots (differs)	not stated	4
Maximum RAM (differs)	128 GB	not stated
Fastest RAM speed stated (differs)	4,400 MT/s	4,800 MT/s
M.2 slots (differs)	not stated	2
Newest PCIe generation stated	PCIe 4.0	PCIe 4.0
PCIe 5.0 graphics slot	not stated	not stated
PCIe 5.0 M.2 slot	not stated	not stated
WiFi	None named in the listing title	None named in the listing title
Bluetooth	not stated	not stated
Wired LAN (differs)	not stated	1GbE
USB4 / Thunderbolt	not stated	not stated
Fastest USB-C port (differs)	not stated	10 Gbps
SATA ports	not stated	not stated
Power phases (as stated by the maker) (differs)	not stated	8+2+1
BIOS flashback	not stated	not stated
Debug LED / POST code	not stated	not stated
ARGB headers (differs)	Yes	not stated
Video outputs (differs)	HDMI	not stated
Audio codec	not stated	not stated
Colour	not stated	not stated
Amazon sales rank	#1,268	#1,268
Buy	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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