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ASRock B850M Pro-A WiFi Motherboard, Socket AM5, AMD B850, M-ATX

 

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ASRock
Part no B850M Pro-A WiFi
Ascent part no 784620
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The ASRock B850M Pro-A WiFi is a Micro ATX motherboard designed for AMD Socket AM5 Ryzen™ 9000, 8000 and 7000 Series processors. It belongs to the Pro-A series, which emphasises enhanced stability, durability, and efficiency. It features an 8+2+1 power phase design with Dr. MOS integrated power stages for smooth, high current delivery. The motherboard supports DDR5 memory with XMP and EXPO overclocking profiles and offers PCIe 5.0 and PCIe 4.0 expansion slots. It includes built-in WiFi 6E and Bluetooth, multiple M.2 storage options, and supports advanced USB connectivity at the rear and front panels. Its 6-layer PCB design ensures lower temperature and higher energy efficiency for memory overclocking. The product targets gamers and PC enthusiasts requiring high reliability and modern connectivity.

Technical Specifications

Product NameASRock B850M Pro-A WiFi
ManufacturerASRock
Model NumberB850M Pro-A WiFi
Product LinePro-A Series
Product CategoryMotherboards
Processor Support
SocketAM5
Supported CPUsAMD Ryzen 9000, 8000 and 7000 Series
Power Design
Power Phases8+2+1
Power SolutionDr. MOS integrated for VCore, SOC, MISC
Power ConnectorHi-Density Power Connector
Memory
TypeDDR5
Slots4 DIMMs
Max CapacityUp to 256GB
Supported StandardsIntel XMP and AMD EXPO profiles
Dual Channel SupportYes
Max SpeedUp to 8000+ MHz (OC)
Expansion Slots
PCIe 5.0 x16 Slots1
PCIe 4.0 x4 Slots1
Storage
M.2 Slots3 (1 PCIe Gen5 x4, 2 PCIe Gen4 x4)
SATA Ports4 x SATA3
Connectivity
USBRear: 1 USB 3.2 Gen2 Type-C, 1 USB 3.2 Gen2 Type-A, 2 USB 3.2 Gen1; Front: 1 USB 3.2 Gen1 Type-C, 4 USB 3.2 Gen1, 4 USB 2.0
LANRealtek 2.5G LAN
WiFi802.11ax WiFi 6E
BluetoothBluetooth (version not specified)
AudioRealtek ALC897 7.1 Channel HD Audio Codec
Graphics Output1 HDMI, 1 DisplayPort
PCB
Layers6-layer PCB for stable signal/ power and overclocking
Form FactorMicro ATX (M-ATX)
Other Features
BIOSSupports BIOS Flashback
DurabilityHigh quality components designed for reliability and system stability
Warranty Information3 years manufacturer warranty

Downloads

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ASRock
Part no B850M Pro-A WiFi
Ascent part no 784620
  • Free NZ deliveryNo hidden fees
  • 100% Kiwi owned34 years in business
  • Net Promoter Score 94Rated by our customers
Questions? (04) 802 3890


"Good selection, good prices, and fast delivery." Billy, 26 October 2026
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