United Kingdom
Catalog   /   Computing   /   Components   /   Motherboards   /   ASRock

ASRock B850M Pro-A (90-MXBR8-A0UAYZ)

Photos - Motherboard ASRock B850M Pro-A
Photos 6
ASRock B850M Pro-A
+ Wi-Fiwithout Wi-Fi
Towards:home / office
Form Factor:micro-ATX
Socket:AMD 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
Main
Featuresfor home/office
SocketAMD AM5
Form factormicro-ATX
Power phases11 / 8+2+1 /
VRM heatsink
Size (HxW)244x244 mm
Chipset
ChipsetAMD B850
BIOSAmi
UEFI BIOS
RAM
DDR54 slot(s)
Memory moduleDIMM
Operation mode2 channel
Max. clock frequency8000 MHz / + /
Max. memory256 GB
XMP
EXPO support
Drive interface
SATA 3 (6Gbps)4
M.2 connector3
M.23xPCI-E 4x
M.2 version1x5.0, 2x4.0
M.2 SSD cooling
Integrated RAID controller
Expansion slots
PCI-E 4x slots1
PCI-E 16x slots1
PCI Express5.0
Steel PCI-E connectors
Internal connections
TPM connector
USB 2.02
USB 3.2 gen12
USB C 3.2 gen11
ARGB LED strip3
RGB LED strip1
Video outputs
HDMI output
HDMI versionv.2.1
DisplayPort
DisplayPort versionv.1.4
Integrated audio
AudiochipRealtek ALC897
Sound (channels)7.1
Network interfaces
LAN (RJ-45)2.5 Gbps
LAN ports1
LAN controllerDragon RTL8125BG
External connections
USB 2.04
USB 3.2 gen12
USB 3.2 gen21
USB C 3.2 gen21
BIOS FlashBack
Power connectors
Main power socket24 pin
CPU power8+4 pin
Fan power connectors5
CPU Fan 4-pin2
Chassis/Water Pump Fan 4-pin3
Official Websiteasrock.com
Added to E-CatalogJanuary 2025
P/N
90-MXBR8-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.
How to choose a motherboard?Motherboard is the main part of any computer. Here's how to choose the right one for work, play and entertainment

Buy ASRock B850M Pro-A

All prices 9 →
When you make a purchase through links on our site, we may receive a affiliate commission.

MB ASRock AMD AM5 B850M Pro-A 90-MXBR80-A0UAYAZ

B850M Pro-A Ergonomic design High quality products
Amazon.co.uk
Delivery: to United Kingdom
Report
£138.29

ASRock Asrock B850M Pro-A (Socket AM5) DDR5 mATX Motherboard 90-MXBR80-A0UAYZ

Detailed Specifications Memory Memory Technology Dual Channel DDR5... moreDIMM Slots 4 x DDR5 DIMM Slots Memory Support Supports DDR5 ECC/non-ECC, un-buffered memory up to 8000+(OC)* Max Capacity 256GB Overclocking Supports Extreme Memory Profile (XMP) and EXTended Profiles for Overclocking (EXPO) Expansion Slot CPU PCIe Slot 1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode* Chipset PCIe Slot 1 x PCIe 4.0 x4 Slot (PCIE2), supports x4 mode* M.2 Slot 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module Gold Contact 15μ Gold Contact in VGA PCIe Slot (PCIE1) Graphics Integrated Graphics AMD RDNA™ graphics (Actual support may vary by CPU) HDMI 1 x HDMI 2.1 TMDS/FRL 8G Compatible, supports HDR, HDCP 2.3, max. resolution up to 4K 120Hz DisplayPort 1 x DisplayPort 1.4 with DSC (compressed), supports HDCP 2.3, max. resolution up to 4K 120Hz Audio Audio Codec Realtek ALC897 Audio Codec Audio Channels 7.1 CH HD Audio LAN LAN Chipset Dragon RTL8125BG LAN Speed 2.5 Gigabit LAN 10/100/1000/2500 Mb/s LAN Software Supports Dragon 2.5G LAN Software with Smart Auto Adjust Bandwidth Control, Visual Network Usage Statistics, Optimized Default Setting for Game, Browser, and Streaming Modes, User Customized Priority Control USB CPU USB Ports 1 x USB 3.2 Gen2 Type-C (Rear), 1 x USB 3.2 Gen2 Type-A (Rear) Chipset USB Ports 1 x USB 3.2 Gen1 Type-C (Front), 6 x USB 3.2 Gen1 Type-A (2 Rear, 4 Front), 8 x USB 2.0 (4 Rear, 4 Front) Rear Panel I/O Ports 2 x Antenna Mounting Points, 1 x HDMI Port, 1 x DisplayPort 1.4, 1 x USB 3.2 Gen2 Type-A Port (10 Gb/s), 1 x USB 3.2 Gen2 Type-C Port, 2 x USB 3.2 Gen1 Ports, 4 x USB 2.0 Ports, 1 x RJ-45 LAN Port, 1 x BIOS Flashback Button, HD Audio Jacks: Line in / Front Speaker / Microphone Storage M.2 Slots 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2280 PCIe Gen5x4 (128 Gb/s) mode, 2 x Hyper M.2 Sockets (M2_2, M2_3, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode SATA Connectors 4 x SATA3 6.0 Gb/s Connectors RAID Support Supports RAID 0, RAID 1, and RAID 10 for both SATA and M.2 NVMe storage devices (requires additional M.2 NVMe expansion cards for RAID 10) Connector Fan Connectors 2 x CPU Fan Connectors (4-pin) (Smart Fan Speed Control), 3 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control) USB Headers 2 x USB 2.0
Overclockers.co.uk
Delivery: to United Kingdom
Report
£127.99

ASRock B850M Pro-A mATX Motherboard for AMD AM5 CPUs 90-MXBR80-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
£127.99

Asrock B850M Pro-A 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.Optimized VRM 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.ConnectivityDragon 2.5 Gb/s LANThe intelligent 2.5Gb/s LAN
itsupplies.uk
Delivery: to United Kingdom
Report
£134.22

ASRock B850M Pro-A DDR5 PCIe 5.0 microATX Motherboard

Scan.co.uk
Delivery: to United Kingdom
Report
£129.98
4 more offer(s)

ASRock B850M Pro-A configurations

Price for ASRock B850M Pro-A
ASRock B850M Pro-A WiFi from £138.008 offers
ASRock B850M Pro-A from £127.009 offers
Filters
Models
ASRock (features)