

£129.88 Original price was: £129.88.£122.42Current price is: £122.42.
£129.88 Original price was: £129.88.£122.42Current price is: £122.42.
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In stock

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Product Description
Asrock B850M PRO-A Built for Power, Ready for Tomorrow

Performance, Power, and Reliability
The ASRock B850M PRO-A is engineered to deliver stable, efficient, and high-end performance for the latest AMD Ryzen 9000, 8000, and 7000 Series processors. With its 8+2+1 Phase Power Design, Dr.MOS modules, and Hi-Density Power Connectors, this board offers consistent voltage regulation, excellent thermal management, and durability—even under heavy workloads and overclocking. A 6-layer PCB adds extra stability and thermal efficiency, while DDR5 support with XMP & EXPO profiles lets users overclock memory effortlessly for enhanced system responsiveness and speed.
Next-Gen Connectivity and Storage
Optimized for high-speed access and future-proof setups, the B850M PRO-A features 1x Blazing M.2 PCIe Gen5x4 slot, 2x Hyper M.2 PCIe Gen4x4 slots, and 4 SATA3 ports. Whether you’re a gamer, a power user, or a creator, these blazing-fast storage options offer ultra-low latency and rapid data transfers. USB 3.2 Gen2 Type-C and Type-A ports (both front and rear) provide quick access for modern peripherals, while Realtek 2.5G LAN ensures seamless online connectivity for downloads, gaming, and streaming.

Custom Cooling, RGB, and Easy Setup
Thermal performance is strengthened through optimized aluminum heatsinks and customizable PWM/DC fan headers, including ASRock’s Fan-Tastic Tuning for complete fan curve control. Personalize your setup with Polychrome RGB and SignalRGB integration, offering full sync and lighting customization across compatible components. Additionally, Auto Driver Installer and BIOS Flashback features make it simple to get your system up and running without the need for a CPU or memory—ensuring maximum convenience for builders and upgraders alike.

Specification | Details |
---|---|
Motherboard Type | Desktop |
Form Factor | Micro ATX |
Socket | AMD AM5 |
Chipset | AMD B850 |
DDR Type | DDR5 |
CPU Support | Ryzen 9000, 8000, 7000 Series |
RAM Slots | 4 x DIMM |
RAM Speeds | Up to 8000+ (OC) |
Maximum Memory | 256GB |
Graphics Ports | 1 x HDMI, 1 x Display Port |
PCIe Slots | 1 x PCIe 5.0 x16, 1 x PCIe 4.0 x4 |
Storage | 4 x SATA III, 3 x M.2 |
RAID Support | RAID 0, 1, 10 for SATA and NVMe |
LAN | 2.5GB LAN |
Audio | 7.1 CH HD Audio (Realtek ALC897) |
Rear USB Ports | 1 x USB-C 10Gbps, 1 x USB-A 10Gbps, 2 x USB-A 5Gbps, 4 x USB 2.0 |
Front USB Ports | 1 x USB-C 5Gbps, 4 x USB-A 5Gbps, 4 x USB 2.0 |
Back Panel I/O | 1 x HDMI, 1 x Display Port 1.4, 1 x USB-C, 1 x USB-A 10Gbps, 2 x USB 5Gbps, 4 x USB 2.0, 1 x RJ-45 LAN, 1 x BIOS Flashback Button, HD Audio |
Internal I/O | 2 x CPU Fan, 3 x Chassis Fan, 2 x USB 2.0, 2 x USB 3.2 Gen1, 1 x Front Panel USB-C, 1 x RGB, 3 x ARGB, TPM, Audio Header |
Accessories | 2 x SATA Cables, 1 x I/O Shield, 1 x M.2 Screw |
Package Weight | 1.2000 kg |
Warranty | 3 Year Replacement |
Other Options
Customer Reviews
20 reviews for Asrock B850M PRO-A, AMD B850, AM5, Micro ATX, 4 DDR5, HDMI, DP, 2.5G LAN, 3x M.2
Clear filtersRecently viewed
- Form Factor: Micro ATX
- Socket: AMD AM5
- Chipset: AMD B850
- DDR Type: DDR5
Asrock B850M PRO-A Built for Power, Ready for Tomorrow

Performance, Power, and Reliability
The ASRock B850M PRO-A is engineered to deliver stable, efficient, and high-end performance for the latest AMD Ryzen 9000, 8000, and 7000 Series processors. With its 8+2+1 Phase Power Design, Dr.MOS modules, and Hi-Density Power Connectors, this board offers consistent voltage regulation, excellent thermal management, and durability—even under heavy workloads and overclocking. A 6-layer PCB adds extra stability and thermal efficiency, while DDR5 support with XMP & EXPO profiles lets users overclock memory effortlessly for enhanced system responsiveness and speed.
Next-Gen Connectivity and Storage
Optimized for high-speed access and future-proof setups, the B850M PRO-A features 1x Blazing M.2 PCIe Gen5x4 slot, 2x Hyper M.2 PCIe Gen4x4 slots, and 4 SATA3 ports. Whether you’re a gamer, a power user, or a creator, these blazing-fast storage options offer ultra-low latency and rapid data transfers. USB 3.2 Gen2 Type-C and Type-A ports (both front and rear) provide quick access for modern peripherals, while Realtek 2.5G LAN ensures seamless online connectivity for downloads, gaming, and streaming.

Custom Cooling, RGB, and Easy Setup
Thermal performance is strengthened through optimized aluminum heatsinks and customizable PWM/DC fan headers, including ASRock’s Fan-Tastic Tuning for complete fan curve control. Personalize your setup with Polychrome RGB and SignalRGB integration, offering full sync and lighting customization across compatible components. Additionally, Auto Driver Installer and BIOS Flashback features make it simple to get your system up and running without the need for a CPU or memory—ensuring maximum convenience for builders and upgraders alike.

Specification | Details |
---|---|
Motherboard Type | Desktop |
Form Factor | Micro ATX |
Socket | AMD AM5 |
Chipset | AMD B850 |
DDR Type | DDR5 |
CPU Support | Ryzen 9000, 8000, 7000 Series |
RAM Slots | 4 x DIMM |
RAM Speeds | Up to 8000+ (OC) |
Maximum Memory | 256GB |
Graphics Ports | 1 x HDMI, 1 x Display Port |
PCIe Slots | 1 x PCIe 5.0 x16, 1 x PCIe 4.0 x4 |
Storage | 4 x SATA III, 3 x M.2 |
RAID Support | RAID 0, 1, 10 for SATA and NVMe |
LAN | 2.5GB LAN |
Audio | 7.1 CH HD Audio (Realtek ALC897) |
Rear USB Ports | 1 x USB-C 10Gbps, 1 x USB-A 10Gbps, 2 x USB-A 5Gbps, 4 x USB 2.0 |
Front USB Ports | 1 x USB-C 5Gbps, 4 x USB-A 5Gbps, 4 x USB 2.0 |
Back Panel I/O | 1 x HDMI, 1 x Display Port 1.4, 1 x USB-C, 1 x USB-A 10Gbps, 2 x USB 5Gbps, 4 x USB 2.0, 1 x RJ-45 LAN, 1 x BIOS Flashback Button, HD Audio |
Internal I/O | 2 x CPU Fan, 3 x Chassis Fan, 2 x USB 2.0, 2 x USB 3.2 Gen1, 1 x Front Panel USB-C, 1 x RGB, 3 x ARGB, TPM, Audio Header |
Accessories | 2 x SATA Cables, 1 x I/O Shield, 1 x M.2 Screw |
Package Weight | 1.2000 kg |
Warranty | 3 Year Replacement |
Lynn (verified owner) –
Build quality is just acceptable
Neha (verified owner) –
Solid performance, just wish it came with more documentation
Nikolai (verified owner) –
Speed boost was immediately noticeable
Leonor (verified owner) –
Exactly what I needed for my gaming rig
Quinton (verified owner) –
Happy overall, just had to replace a missing screw
Randell (verified owner) –
Decent thermal performance, not the best
Maxwell (verified owner) –
It’s fine, just not worth the hype
Laurence (verified owner) –
Top-notch performance and easy installation
Norberto (verified owner) –
A must-have upgrade for any serious gamer
Nicole (verified owner) –
Perfect for gaming and multitasking
Maxine (verified owner) –
Fits well in my case, tight clearance though
Randolph (verified owner) –
Good value but no included cables
Madeline (verified owner) –
Exactly as described and works great
Lela (verified owner) –
Highly recommend for any PC build
Preston (verified owner) –
Super fast delivery and the product works perfectly
Melisa (verified owner) –
Fair quality, feels a bit outdated
Paxton (verified owner) –
Massive improvement from my old component
Michel (verified owner) –
Would definitely buy again from this store
Neal (verified owner) –
Good investment for long-term performance
Lizeth (verified owner) –
Delivered ahead of time and well packed