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Side-by-side comparison of 2 motherboards
SpecificationASUS Prime B550M-A AMD Ryzen AM4 Micro ATX MotherboardASUS AMD B550 (Ryzen AM4) micro ATX motherboard with dual M.2
Price (new) (differs)£105.86as of 20 Sep, 06:20£123.69as of 20 Sep, 06:20
Amazon Warehouse offernot statednot stated
RRP (differs)not stated£200.20
Price badgenot statednot stated
First available on Amazon (differs)Jan 2022 (4 yr 8 mo old)Feb 2022 (4 yr 7 mo old)
BrandASUSASUS
SocketAM4AM4
ChipsetB550B550
Form factorMicro-ATXMicro-ATX
Memory typeDDR4DDR4
RAM slotsnot statednot stated
Maximum RAMnot statednot stated
Fastest RAM speed statednot statednot stated
M.2 slots22
Newest PCIe generation statedPCIe 4.0PCIe 4.0
PCIe 5.0 graphics slotnot statednot stated
PCIe 5.0 M.2 slotnot statednot stated
WiFiNone named in the listing titleNone named in the listing title
Bluetoothnot statednot stated
Wired LAN1GbE1GbE
USB4 / Thunderboltnot statednot stated
Fastest USB-C portnot statednot stated
SATA portsnot statednot stated
Power phases (as stated by the maker)not statednot stated
BIOS flashbacknot statednot stated
Debug LED / POST codenot statednot stated
ARGB headersYesYes
Video outputsHDMIHDMI
Audio codecnot statednot stated
Colournot statednot stated
Amazon sales rank (differs)#227,737#193,500
BuyCheck price on AmazonCheck 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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