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SpecificationASUS Pro WS B850M-ACE SE AMD AM5 B850 mATX MicroATX Business…MSI PRO B850M-P WIFI Motherboard
Price (new) (differs)not stated£137.99as of 20 Sep, 06:22
Amazon Warehouse offernot statednot stated
RRP (differs)not stated£139.99
Price badgenot statednot stated
First available on Amazon (differs)Oct 2025 (11 mo old)Jun 2025 (1 yr 2 mo old)
Brand (differs)ASUSMSI
SocketAM5AM5
ChipsetB850B850
Form factorMicro-ATXMicro-ATX
Memory typeDDR5DDR5
RAM slots (differs)not stated4
Maximum RAMnot statednot stated
Fastest RAM speed stated (differs)not stated8,200 MT/s
M.2 slots (differs)23
Newest PCIe generation statedPCIe 5.0PCIe 5.0
PCIe 5.0 graphics slotYesYes
PCIe 5.0 M.2 slotYesYes
WiFi (differs)None named in the listing titleWiFi 7
Bluetooth (differs)not stated5.4
Wired LAN (differs)2.5GbE5GbE
USB4 / Thunderbolt (differs)USB4not stated
Fastest USB-C port (differs)20 Gbps10 Gbps
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 headersnot statednot stated
Video outputsnot statednot stated
Audio codecnot statednot stated
Colournot statednot stated
Amazon sales rank (differs)#234,603#1,062
BuySee it 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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