Key Features
- mATX Form Factor
- AMD B850 Chipset
- Socket AM5
- DDR5 (Max: 256GB / 4 slots)
- 3 x M.2 & 8 x USB & 4 x SATA
- HDMI and Display Port
Shipping & Delivery
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Standard Delivery
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5-7 Working Days
From £4.99
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ASRock B850M Pro RS Micro ATX Motherboard for AMD AM5 CPUs
£126.44 Original price was: £126.44.£117.08Current price is: £117.08. INC VAT
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In stock
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Key Features
- mATX Form Factor
- AMD B850 Chipset
- Socket AM5
- DDR5 (Max: 256GB / 4 slots)
- 3 x M.2 & 8 x USB & 4 x SATA
- HDMI and Display Port
Shipping & Delivery
-
Standard Delivery
Our courier will deliver to the specified address
5-7 Working Days
From £4.99
-
Express Delivery
DHL courier will deliver to the specified address
2-3 Working Days
From £9.99
-
Free 30-Day returns
Description
ASRock B850M PRO RS Power Meets Precision in a Compact Form
Reliable Performance for Modern Builds
The ASRock B850M PRO RS delivers a compact, micro-ATX solution packed with cutting-edge hardware support, perfect for power users, gamers, and content creators. Equipped with AMD B850 chipset and AM5 socket, it offers compatibility with Ryzen 9000, 8000, and 7000 Series processors. The advanced 8+2+1 power phase design with Dr.MOS ensures stable power delivery even under demanding workloads, while the 6-layer PCB and high-density power connectors support consistent performance. Designed with efficiency and durability in mind, this board is built to last.
Next-Gen Memory, Graphics, and Connectivity
Supporting up to 256GB of DDR5 memory and overclocking up to 8000+ MHz, the B850M PRO RS unleashes the full potential of next-gen computing. Whether you’re utilizing integrated graphics or high-end discrete GPUs, the PCIe 5.0 x16 slot ensures blazing bandwidth for your graphics card. M.2 storage is optimized with support for both Gen5 and Gen4 NVMe drives, and an abundance of USB ports—both front and rear—offer maximum versatility for peripherals. HDMI and DisplayPort video outputs round out the visual capabilities for dual-display or high-resolution output.
Premium Features in a Compact Design
Despite its small footprint, the ASRock B850M PRO RS includes a rich suite of premium features like Realtek 2.5G LAN, Nahimic-enhanced 7.1 HD audio, and customizable Polychrome RGB. With convenient BIOS Flashback, M.2 heatsinks, and dedicated headers for AIOs and chassis fans, it’s optimized for cooling and ease of use. Whether you’re building a stylish, compact workstation or a full-featured gaming rig, this board delivers premium value in a streamlined package.
| Motherboard Type | Desktop |
|---|---|
| Form Factor | Micro ATX |
| Socket | AMD AM5 |
| Chipset | AMD B850 |
| Memory Support | DDR5 (Dual Channel, ECC/Non-ECC Unbuffered, XMP & EXPO) |
| Memory Slots | 4 x DIMM |
| Max Memory | 256GB |
| Memory Speed | Up to 8000+ MHz (OC) |
| Graphics Support | Integrated (via CPU, varies by model) |
| Video Outputs | 1 x HDMI, 1 x Display Port 1.4 |
| Expansion Slots | Ryzen 9000 & 7000: 1 x PCIe 5.0 x16, 1 x PCIe 4.0 x4 Ryzen 8000: 1 x PCIe 4.0 x8/x4, 1 x PCIe 4.0 x4 |
| Storage | 4 x SATA III Ryzen 9000/7000: 1 x M.2 PCIe 5.0 x4 Ryzen 8000: 1 x M.2 PCIe 4.0 x4 B850 Chipset: 2 x M.2 PCIe 4.0 x4/x2 |
| RAID Support | RAID 0, 1, 10 (SATA & M.2 NVMe) |
| LAN | Realtek 2.5 Gigabit LAN |
| Audio | 7.1 CH HD Audio (Realtek ALC897 + Nahimic) |
| USB Ports | Rear: 1 x USB 3.2 Gen2 Type-C, 1 x Gen2 Type-A, 2 x Gen1, 4 x USB 2.0 Front: 1 x Gen1 Type-C, 4 x Gen1 Type-A, 4 x USB 2.0 |
| Back Panel I/O | 1 x HDMI 1 x Display Port 1.4 1 x USB 3.2 Gen2 Type-C 1 x USB 3.2 Gen2 Type-A 2 x USB 3.2 Gen1 4 x USB 2.0 1 x RJ-45 LAN 1 x BIOS Flashback Button HD Audio Jacks |
| Internal Connectors | 1 x Front Panel USB Type-C (Gen1) 2 x USB 3.2 Gen1, 2 x USB 2.0 2 x CPU Fan, 3 x Chassis Fan RGB Headers, TPM, 24-pin ATX, 8+4 pin CPU Power |
| RGB Support | Polychrome RGB, SignalRGB |
| Accessories | 2 x SATA Cables, 1 x M.2 Screw |
| Warranty | 3 Years Replacement Warranty |
| Package Type | Retail (1.275 kg) |
| CPU Support | View CPU Support List |



