ASRock B850M Pro-A WiFi (90-MXBR9-A0UAYZ)

Name: ASRock B850M Pro-A WiFi 90-MXBR9-A0UAYZ
Brand: ASRock

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ASRock B850M Pro-A WiFi

+ Wi-Fiwithout Wi-Fi

2025 Pro Wi-Fi M.2 cooling no backlight 2.5 Gbps

Towards:home / office

Form Factor:micro-ATX

Socket:AM5

Chipset:AMD B850

BIOS:Ami

RAM slots:DDR5 4 sl

RAM form factor:DIMM

RAM clock:8000 MHz

Sound (channels):7.1

Connectors:HDMI, M.2

Additional connectors:DisplayPort

Power connector:24-pin

Processor power:8+4-pin

All specifications

Specifications B850M Pro-A WiFi

Main
Features	for home/office
Socket	AM5
Form factor	micro-ATX
Power phases	11 / 8+2+1 /
VRM heatsink
Size (HxW)	244x244 mm


Chipset
Chipset	AMD B850
BIOS	Ami
UEFI BIOS


RAM
DDR5	4 slot(s)
Memory module	DIMM
Operation mode	2 channel
Max. clock frequency	8000 MHz
Max. memory	256 GB
XMP
EXPO support


Drive interface
SATA 3 (6Gbps)	4
M.2 connector	3
M.2	3xPCIe 4x
M.2 version	1x5.0, 2x4.0
M.2 SSD cooling
Integrated RAID controller


Expansion slots
PCIe 4x slots	1 pcs
PCIe 16x slots	1 pcs
PCIe support	5.0
Steel PCIe connectors


Internal connections
TPM connector
USB-A 2.0	2 pcs
USB-A 5Gbps	2 pcs
USB-C 5Gbps	1 pcs
ARGB LED strip	3
RGB LED strip	1

Video outputs
HDMI output
HDMI version	v2.1
DisplayPort
DisplayPort version	v.1.4


Integrated audio
Audiochip	Realtek ALC897
Sound (channels)	7.1


Network interfaces
Wi-Fi	Wi-Fi 6E (802.11ax)
Bluetooth	Bluetooth v5.2
LAN (RJ-45)	2.5 Gbps
LAN ports	1
LAN controller	Dragon RTL8125BG


External connections
USB-A 2.0	4 pcs
USB-A 5Gbps	2 pcs
USB-A 10Gbps	1 pcs
USB-C 10Gbps	1 pcs
BIOS FlashBack


Power connectors
Main power socket	24-pin
CPU power	8+4-pin
Fan power connectors	5
CPU Fan 4-pin	2
Chassis/Water Pump Fan 4-pin	3


Official Website	asrock.com
Added to E-Catalog	January 2025
P/N	90-MXBR9-A0UAYZ

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
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	ASRock B850M Pro-A WiFi mATX Motherboard for AMD Socket AM5 CPUs 90-MXBR90-A0UAYZ Pro-A series is designed for enhanced stability, durability, and efficiency, it offers reliable performance, user-friendly fe... moreatures and a streamlined aesthetic, making it ideal for daily computing needs. CCLonline.com Delivery: to United Kingdom Report	£111.99 Buy in shop

	Asrock B850M Pro-A WiFi AMD B850 Socket AM5 micro ATX Asrock B850M Pro-A WiFi AMD B850 Socket AM5 micro ATX Optimized for stability. durability. and efficiency. It combines reliab... morele performance. user-friendly features and streamlined style for daily computing tasks.PerformanceOptimized VRM DesignVRM Design8+2+1 Power Phase DesignFeaturing sturdy components and completely smooth power delivery to the CPU. offering enhanced performance for gamers.Dr. MOSDr.MOS is the integrated power stage solution which is optimized for synchronous buck-set down voltage applications! Compared to traditional discrete MOSFETs. it intelligently delivers higher current for each phase. thus providing improved thermal result and superior performance.Power ConnectorHi-Density Power ConnectorCPU overclocking requires higher current. ASRock Hi-Density Power Connectors are designed to withstand higher currents compared to traditional CPU and ATX power connectors. providing a more stable system and reducing the risk of fire during heavy overclocking.6 Layer PCBThe 6 Layer PCB provides stable signal traces and power shapes delivering lower temperature and higher energy efficiency for memory overclocking! Thus. it's able to support the latest memory modules with most extreme memory performance!DDR5 XMP & EXPO SupportDerived from the “built for stable and reliable” designing concept. ASRock does not compromise on any details. This motherboard is built with high quality materials. enthusiasts are able to enjoy the boost of DDR5 memory overclocking performance by enabling the pre-tested profiles. Make sure the memory modules are Intel® XMP/AMD EXPO™ capable and overclocking can be made so affordable. satisfying and absolutely no sweat at all.High Speed M.2 SolutionPCIe Gen5 Blazing M.2The Blazing M.2 accommodates the latest PCI Express 5.0 standard to perform twice the bandwidth compared to previous generation. with a breathtaking 128Gb/s transfer speed. it is ready to unleash the full potential of future ultrafast SSDs.Hyper M.2 Gen4 x4Supports PCI Express 4.0 M.2 SSDs. it is capable of perform twice the speed compared to previous 3rd generation. giving a lightning fast data transferring experience.CoolingIntelligent Cooling DesignAluminum HeatsinkThe first thing that catches the eye is the optimized Aluminum Heatsink Design. Heatsinks are crucial for efficient heat dissipation. especially during heavy workloads like gaming or productivity tasks. Motherboard that built with heatsinks can effectively manage thermal performance. hence ensure system stability and durability effortlessly.PWM/DC Fan SupportASRock fan headers automatically detect whether fans are running in DC or PWM mode. allowing users to fine-tune the fan curve and achieve quieter operation.Fan-Tastic TuningASRock A-Tuning Fan-Tastic Tuning function enables users to auto-detect the minimum duty of each fan with a single click. Users can also easily adjust the fan curve via the visualized UI interface. meeting their system's cooling performance and noise Pcnova.co.uk Delivery: in United Kingdom Report	£113.62 Buy in shop

	Asrock B850M Pro-A WiFi AMD B850 Socket AM5 micro ATX Optimized for stability. durability. and efficiency. It combines reliable performance. user-friendly features and streamlined... morestyle for daily computing tasks.PerformanceOptimized VRM DesignVRM Design8+2+1 Power Phase DesignFeaturing sturdy components and completely smooth power delivery to the CPU. offering enhanced performance for gamers.Dr. MOSDr.MOS is the integrated power stage solution which is optimized for synchronous buck-set down voltage applications! Compared to traditional discrete MOSFETs. it intelligently delivers higher current for each phase. thus providing improved thermal result and superior performance.Power ConnectorHi-Density Power ConnectorCPU overclocking requires higher current. ASRock Hi-Density Power Connectors are designed to withstand higher currents compared to traditional CPU and ATX power connectors. providing a more stable system and reducing the risk of fire during heavy overclocking.6 Layer PCBThe 6 Layer PCB provides stable signal traces and power shapes delivering lower temperature and higher energy efficiency for memory overclocking! Thus. it's able to support the latest memory modules with most extreme memory performance!DDR5 XMP & EXPO SupportDerived from the “built for stable and reliable” designing concept. ASRock does not compromise on any details. This motherboard is built with high quality materials. enthusiasts are able to enjoy the boost of DDR5 memory overclocking performance by enabling the pre-tested profiles. Make sure the memory modules are Intel® XMP/AMD EXPO™ capable and overclocking can be made so affordable. satisfying and absolutely no sweat at all.High Speed M.2 SolutionPCIe Gen5 Blazing M.2The Blazing M.2 accommodates the latest PCI Express 5.0 standard to perform twice the bandwidth compared to previous generation. with a breathtaking 128Gb/s transfer speed. it is ready to unleash the full potential of future ultrafast SSDs.Hyper M.2 Gen4 x4Supports PCI Express 4.0 M.2 SSDs. it is capable of perform twice the speed compared to previous 3rd generation. giving a lightning fast data transferring experience.CoolingIntelligent Cooling DesignAluminum HeatsinkThe first thing that catches the eye is the optimized Aluminum Heatsink Design. Heatsinks are crucial for efficient heat dissipation. especially during heavy workloads like gaming or productivity tasks. Motherboard that built with heatsinks can effectively manage thermal performance. hence ensure system stability and durability effortlessly.PWM/DC Fan SupportASRock fan headers automatically detect whether fans are running in DC or PWM mode. allowing users to fine-tune the fan curve and achieve quieter operation.Fan-Tastic TuningASRock A-Tuning Fan-Tastic Tuning function enables users to auto-detect the minimum duty of each fan with a single click. Users can also easily adjust the fan curve via the visualized UI interface. meeting their system's cooling performance and noise reduction requirements.ConnectivityWi-Fi 6E 802.11axeWiFi 6E Gamingkit.co.uk Delivery: in United Kingdom Report	£113.62 Buy in shop

	ASRock B850M Pro-A WiFi AMD Ryzen AM5 DDR5 mATX Motherboard - 90-MXBR9-A0UAYZ 90-MXBR9-A0UAYZ Awd-it.co.uk Delivery: to United Kingdom Report	£115.75 Buy in shop

	Asrock B850M Pro-A WiFi AMD Socket AM5 AMD Ryzen 7000 Series AMD Ryzen 8000 Series AMD Ryzen 9000 Series Socket AM5 DDR5-SDR Pro-A series is designed for enhanced stability durability and efficiency it offers reliable performance... moreuser-friendly features and a streamlined aesthetic making it ideal for daily computing needs. - Supports AMD Socket AM5 Ryzen™ 9000 8000 and 7000 Series Processors - 8+2+1 Phase Power Design Dr.MOS for VCore+SOC+MISC - 4 x DDR5 DIMMs - Supports Dual Channel up to 8000+ (OC) - 1 PCIe 5.0 x16 1 PCIe 4.0 x4 - Graphics Output Options: 1 HDMI 1 DisplayPort - Realtek ALC897 7.1 CH HD Audio Codec - 1 Blazing M.2 (PCIe Gen5x4) - 2 Hyper M.2 (PCIe Gen4x4) - 4 SATA3 - 1 USB 3.2 Gen2 Type-C (Rear) - 1 USB 3.2 Gen2 Type-A (Rear) - 1 USB 3.2 Gen1 Type-C (Front) - 6 USB 3.2 Gen1 (2 Rear 4 Front) - 8 USB 2.0 (4 Rear 4 Front) - Realtek 2.5G LAN - 802.11axe WiFi 6E +Bluetooth - Supports BIOS Flashback Performance - 8+2+1 Power Phase Design - Featuring sturdy components and completely smooth power delivery to the CPU offering enhanced performance for gamers. - Dr. MOS - Dr.MOS is the integrated power stage solution which is optimized for synchronous buck-set down voltage applications! Compared to traditional discrete MOSFETs it intelligently delivers higher current for each phase thus providing improved thermal result and superior performance. - Hi-Density Power Connector - CPU overclocking requires higher current. ASRock Hi-Density Power Connectors are designed to withstand higher currents compared to traditional CPU and ATX power connectors providing a more stable system and reducing the risk of fire during heavy overclocking. - 6 Layer PCB - The 6 Layer PCB provides stable signal traces and power shapes delivering lower temperature and higher energy efficiency for memory overclocking! Thus it's able to support the latest memory modules with most extreme memory performance! - DDR5 XMP & EXPO Support - Derived from the “built for stable and reliable” designing concept ASRock does not compromise on any details. This motherboard is built with high quality materials enthusiasts are able to enjoy the boost of DDR5 memory overclocking performance by enabling the pre-tested profiles. Make sure the memory modules are Intel® XMP/AMD EXPO™ capable and overclocking can be made so affordable satisfying and absolutely no sweat at all. High Speed M.2 Solution - PCIe Gen5 Blazing M.2 - The Blazing M.2 accommodates the latest PCI Express 5.0 standard to perform twice the bandwidth compared to previous generation with a breathtaking 128Gb/s transfer speed it is ready to unleash the full potential of future ultrafast SSDs. - Hyper M.2 Gen4 x4 - Supports PCI Express 4.0 M.2 SSDs it is capable of perform twice the speed compared to previous 3rd generation giving a Quzo.co.uk Delivery: to United Kingdom Report	£119.18 Buy in shop