

£156.05 Original price was: £156.05.£147.10Current price is: £147.10.
£156.05 Original price was: £156.05.£147.10Current price is: £147.10.
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In stock

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Product Description
ASRock Pro-A B850 Perfected Performance and Connectivity

Built for Power Users and Overclockers
The ASRock Pro-A B850 motherboard delivers a harmonious blend of performance, stability, and innovative features tailored for both professionals and enthusiasts. With support for the latest AMD Ryzenâ„¢ 9000, 8000, and 7000 series processors on the AM5 socket, this ATX board is built to push boundaries. Backed by a 14+2+1 power phase design with 80A Dr.MOS and a high-efficiency 8-layer PCB, it offers exceptional overclocking potential while ensuring system stability. The memory configuration supports blazing DDR5 speeds over 8000+ MHz (OC), and the robust cooling design with aluminum heatsinks and customizable fan controls makes it an ideal choice for performance-driven users.
Cutting-Edge DDR5 & PCIe 5.0 Support
Connectivity is a highlight of the Pro-A B850, boasting Dragon 2.5G LAN, front-panel USB 3.2 Gen2x2 Type-C, and dual DisplayPort-capable USB Type-C ports. Expansion options are extensive with support for PCIe 5.0 and 4.0 slots, alongside four M.2 sockets including a Gen5 Blazing M.2 for ultra-fast SSDs. Audio is equally strong with Realtek’s ALC897 7.1 HD codec, ensuring immersive sound for gaming and media.

Full-Speed USB and 2.5G LAN Mastery
The board is topped off with signature ASRock features like BIOS Flashback, Polychrome RGB lighting, and SignalRGB support for advanced customization. With EZ Setup tools such as the Auto Driver Installer and reinforced PCIe Steel Slot, this motherboard is built to simplify setup and endure heavy-duty usage. Whether you're building a gaming rig, workstation, or creative suite, the ASRock Pro-A B850 offers the power and reliability to match your ambition.

Category | Details |
---|---|
Motherboard Type | Desktop |
Form Factor | ATX |
Socket | AMD AM5 |
Chipset | AMD B850 |
CPU Support | CPU support |
RAM Technology | DDR5 (Dual Channel), ECC and Non-ECC Un-buffered DIMM, Supports XMP & EXPO |
RAM Slots | 4 x DIMM |
RAM Speeds | Up to 8000+ (OC) |
Maximum Memory | 256GB |
Graphics | Integrated Graphics (Graphics specifications may vary by CPU type) |
Graphics Ports | 1 x HDMI 1 x USB 3.2 Gen1 Type-C (supports DP 1.4 HBR3) |
PCI/PCI Express | Ryzen 9000 & 7000 Series CPUs: 1 x PCIe 5.0 x16 Ryzen 8000 Series CPUs: 1 x PCIe 4.0 x8/x4 AMD B850 Chipset: 1 x PCIe 4.0 x16 (x4 mode) |
Storage Interfaces | 4 x SATA III 4 x M.2 Ryzen 9000 & 7000 Series CPUs: M.2_1 (2280) – PCIe 5.0 x4 M.2_2 (2280) – PCIe 4.0 x4 Ryzen 8000 Series CPUs: M.2_1 (2280) – PCIe 4.0 x4 M.2_2 (2280) – PCIe 4.0 x4/x2 AMD B850 Chipset: M.2_3 (2230/2242/2260/2280) – PCIe 3.0 x4 M.2_4 (2280) – PCIe 4.0 x4 |
RAID Support | RAID 0, 1 (SATA devices) RAID 0, 1, 10 (M.2 NVMe devices) |
Wireless-LAN | 2.5GB LAN |
Audio | 7.1 CH HD Audio (Realtek ALC897 Audio Codec) |
USB Ports | Rear: 1 x USB 10Gbps Type-C 1 x USB 5Gbps Type-C 4 x USB 5Gbps Type-A 6 x USB 2.0 Front: 1 x USB 20Gbps Type-C 2 x USB 5Gbps Type-A 3 x USB 2.0 |
Back Panel I/O Ports | 2 x Antenna Mounting Points 1 x HDMI 1 x USB 3.2 Gen2 Type-C 1 x USB 3.2 Gen1 Type-C 4 x USB 3.2 Gen1 Type-A 6 x USB 2.0 1 x RJ-45 LAN 1 x BIOS Flashback Button HD Audio Jacks |
Internal I/O Connectors | 1 x SPI TPM 1 x Power LED and Speaker 1 x RGB LED 3 x Addressable LED 2 x CPU Fan 4 x Chassis Fan 1 x AIO Pump Fan 1 x 24-pin ATX 2 x 8-pin 12V 1 x Front Panel Audio 2 x USB 2.0 1 x USB 3.2 Gen1 1 x Front Panel Type-C USB 3.2 Gen2x2 |
Accessories | 1 x I/O Shield 2 x SATA Data Cables 1 x Screw for M.2 Socket |
Package Type | Retail |
Package Weight | 1.7400 kg |
Warranty | 3 Year Replacement Warranty |
Full Box Quantity | 5 |
Other Options
Customer Reviews
37 reviews for ASRock B850 PRO-A, AMD B850, AM5, ATX, DDR5, USB-C, 2.5G LAN, HDMI, 4x M.2
Clear filtersRecently viewed
- Form Factor: ATX
- Socket: AMD AM5
- Chipset: AMD B850
- DDR Type: DDR5
ASRock Pro-A B850 Perfected Performance and Connectivity

Built for Power Users and Overclockers
The ASRock Pro-A B850 motherboard delivers a harmonious blend of performance, stability, and innovative features tailored for both professionals and enthusiasts. With support for the latest AMD Ryzenâ„¢ 9000, 8000, and 7000 series processors on the AM5 socket, this ATX board is built to push boundaries. Backed by a 14+2+1 power phase design with 80A Dr.MOS and a high-efficiency 8-layer PCB, it offers exceptional overclocking potential while ensuring system stability. The memory configuration supports blazing DDR5 speeds over 8000+ MHz (OC), and the robust cooling design with aluminum heatsinks and customizable fan controls makes it an ideal choice for performance-driven users.
Cutting-Edge DDR5 & PCIe 5.0 Support
Connectivity is a highlight of the Pro-A B850, boasting Dragon 2.5G LAN, front-panel USB 3.2 Gen2x2 Type-C, and dual DisplayPort-capable USB Type-C ports. Expansion options are extensive with support for PCIe 5.0 and 4.0 slots, alongside four M.2 sockets including a Gen5 Blazing M.2 for ultra-fast SSDs. Audio is equally strong with Realtek’s ALC897 7.1 HD codec, ensuring immersive sound for gaming and media.

Full-Speed USB and 2.5G LAN Mastery
The board is topped off with signature ASRock features like BIOS Flashback, Polychrome RGB lighting, and SignalRGB support for advanced customization. With EZ Setup tools such as the Auto Driver Installer and reinforced PCIe Steel Slot, this motherboard is built to simplify setup and endure heavy-duty usage. Whether you're building a gaming rig, workstation, or creative suite, the ASRock Pro-A B850 offers the power and reliability to match your ambition.

Category | Details |
---|---|
Motherboard Type | Desktop |
Form Factor | ATX |
Socket | AMD AM5 |
Chipset | AMD B850 |
CPU Support | CPU support |
RAM Technology | DDR5 (Dual Channel), ECC and Non-ECC Un-buffered DIMM, Supports XMP & EXPO |
RAM Slots | 4 x DIMM |
RAM Speeds | Up to 8000+ (OC) |
Maximum Memory | 256GB |
Graphics | Integrated Graphics (Graphics specifications may vary by CPU type) |
Graphics Ports | 1 x HDMI 1 x USB 3.2 Gen1 Type-C (supports DP 1.4 HBR3) |
PCI/PCI Express | Ryzen 9000 & 7000 Series CPUs: 1 x PCIe 5.0 x16 Ryzen 8000 Series CPUs: 1 x PCIe 4.0 x8/x4 AMD B850 Chipset: 1 x PCIe 4.0 x16 (x4 mode) |
Storage Interfaces | 4 x SATA III 4 x M.2 Ryzen 9000 & 7000 Series CPUs: M.2_1 (2280) – PCIe 5.0 x4 M.2_2 (2280) – PCIe 4.0 x4 Ryzen 8000 Series CPUs: M.2_1 (2280) – PCIe 4.0 x4 M.2_2 (2280) – PCIe 4.0 x4/x2 AMD B850 Chipset: M.2_3 (2230/2242/2260/2280) – PCIe 3.0 x4 M.2_4 (2280) – PCIe 4.0 x4 |
RAID Support | RAID 0, 1 (SATA devices) RAID 0, 1, 10 (M.2 NVMe devices) |
Wireless-LAN | 2.5GB LAN |
Audio | 7.1 CH HD Audio (Realtek ALC897 Audio Codec) |
USB Ports | Rear: 1 x USB 10Gbps Type-C 1 x USB 5Gbps Type-C 4 x USB 5Gbps Type-A 6 x USB 2.0 Front: 1 x USB 20Gbps Type-C 2 x USB 5Gbps Type-A 3 x USB 2.0 |
Back Panel I/O Ports | 2 x Antenna Mounting Points 1 x HDMI 1 x USB 3.2 Gen2 Type-C 1 x USB 3.2 Gen1 Type-C 4 x USB 3.2 Gen1 Type-A 6 x USB 2.0 1 x RJ-45 LAN 1 x BIOS Flashback Button HD Audio Jacks |
Internal I/O Connectors | 1 x SPI TPM 1 x Power LED and Speaker 1 x RGB LED 3 x Addressable LED 2 x CPU Fan 4 x Chassis Fan 1 x AIO Pump Fan 1 x 24-pin ATX 2 x 8-pin 12V 1 x Front Panel Audio 2 x USB 2.0 1 x USB 3.2 Gen1 1 x Front Panel Type-C USB 3.2 Gen2x2 |
Accessories | 1 x I/O Shield 2 x SATA Data Cables 1 x Screw for M.2 Socket |
Package Type | Retail |
Package Weight | 1.7400 kg |
Warranty | 3 Year Replacement Warranty |
Full Box Quantity | 5 |
Lucie (verified owner) –
Minta (verified owner) –
Never thought I’d leave a review, but this custom game build is truly worth it! You guys nailed it!
Leonore (verified owner) –
Outstanding custom PC! The build is solid, and the support team was incredibly helpful. Highly recommend!
Leanna (verified owner) –
The white gaming PC looks and works great. Minor fan noise issue, but otherwise very happy with it.
Oliver (verified owner) –
A stunning white gaming PC with top-tier performance. Totally worth it, highly recommend!
Lelia (verified owner) –
Finally, a custom PC that meets all my needs. The build quality and support are exceptional!
Mervin (verified owner) –
Absolutely in love with my new white gaming PC. It’s stylish and super powerful. Excellent purchase!
Lionel (verified owner) –
This is hands down the best custom game build I’ve ever used. Highly recommend to all gamers out there!
Mikel (verified owner) –
Absolutely thrilled with my new custom PC! The performance is outstanding and it looks great too!
Liliane (verified owner) –
Beyond excited with this purchase! The custom game build exceeded my expectations. Awesome work!
Oda (verified owner) –
Found my perfect gaming setup here! Worth every penny and the customer support is fantastic.
Mark (verified owner) –
Never knew I needed a white gaming PC until now. Sleek design and stellar performance!
Lester (verified owner) –
This custom PC is a game-changer for me. Amazing flexibility and top-notch customer service!
Myrtie (verified owner) –
This white gaming PC is a showstopper! Not only looks amazing but performs like a beast. Love it!
Leonel (verified owner) –
My dream gaming setup, perfect in every way. The white finish is just the cherry on top!
Preston (verified owner) –
The white gaming PC performs wonderfully. Just wish the cables were a bit better organized out of the box.
Miracle (verified owner) –
Superb performance and sleek design. This custom game build is a gamer’s dream come true. Great job, team!
Morgan (verified owner) –
Murl (verified owner) –
Couldn’t be happier with my custom PC. It’s powerful, reliable, and looks fantastic. Kudos to the team!
Moriah (verified owner) –
The white gaming PC looks stunning and performs well. Only minor complaint is the fan noise, but it’s manageable.
Lonnie (verified owner) –
Mossie (verified owner) –
Really good custom PC. Setup was a bit tricky, but once it was up and running, it’s been great!
Luz (verified owner) –
Outstanding custom PC! The build is solid, and the support team was incredibly helpful. Highly recommend!
Leonie (verified owner) –
My dream gaming setup, perfect in every way. The white finish is just the cherry on top!
Mortimer (verified owner) –
Found my perfect gaming setup here! Worth every penny and the customer support is fantastic.
Pascale (verified owner) –
Muriel (verified owner) –
Mara (verified owner) –
Found my perfect gaming setup here! Worth every penny and the customer support is fantastic.
Marian (verified owner) –
Quentin (verified owner) –
Really satisfied with this custom game build! Just needed some minor adjustments for peak performance.
Madaline (verified owner) –
Paris (verified owner) –
Outstanding custom PC! The build is solid, and the support team was incredibly helpful. Highly recommend!
Porter (verified owner) –
Larissa (verified owner) –
Never thought I’d leave a review, but this custom game build is truly worth it! You guys nailed it!
Ola (verified owner) –
Norene (verified owner) –
Lonie (verified owner) –
A stunning white gaming PC with top-tier performance. Totally worth it, highly recommend!