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SpecificationAMD B850 Micro-ATX motherboardMSI PRO B850M-A WIFI PZ Motherboard
Price (new) (differs)£195.99as of 13 Oct, 06:21£189.95as of 13 Oct, 06:22
Amazon Warehouse offer (differs)£172.86 (Used - Good)as of 13 Oct, 06:21£143.70 (Used - Like New)as of 13 Oct, 06:22
RRP (differs)£205.99£189.99
Price badgenot statednot stated
First available on Amazon (differs)Aug 2025 (1 yr 2 mo old)Oct 2025 (11 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)32
Newest PCIe generation statedPCIe 5.0PCIe 5.0
PCIe 5.0 graphics slotYesYes
PCIe 5.0 M.2 slot (differs)not statedYes
WiFiWiFi 7WiFi 7
Bluetooth (differs)not stated5.4
Wired LAN (differs)2.5GbE5GbE
USB4 / Thunderboltnot statednot stated
Fastest USB-C port (differs)20 Gbps10 Gbps
SATA portsnot statednot stated
Power phases (as stated by the maker) (differs)14+2+1not stated
BIOS flashbacknot statednot stated
Debug LED / POST codenot statednot stated
ARGB headers (differs)Yesnot stated
Video outputs (differs)HDMI, DisplayPortnot stated
Audio codecnot statednot stated
Colournot statednot stated
Amazon sales rank (differs)#32,810#1,060
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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