Build a compact powerhouse with the ASRock AMD B850 micro-ATX motherboard for Socket AM5, ready for Ryzen 7000, 8000G, and 9000 processors. With four DDR5 DIMM slots supporting up to 256GB, it’s perfect for high-end gaming and heavy multitasking. Get next-gen graphics support via a PCIe 5.0 x16 slot, plus an additional x4 slot for expansion. Storage is fast and flexible with 3x M.2 slots (including a passive M.2 cooler) and 4x SATA 6Gb/s ports. Connectivity includes 2.5GbE Realtek LAN, Wi-Fi 6E, and Bluetooth 5.2. Enjoy easy building features like USB BIOS Flashback, diagnostic LEDs, and an integrated I/O shield, plus 7.1 audio and plenty of fan and RGB/ARGB headers for a clean, cool, custom setup.
ASRock B850M Pro RS WiFi AM5 mATX HDMI/DP DDR5
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Motherboard Basic Features |
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| Chipset Manufacturer | AMD |
| Manufacturer | ASRock |
| Chipset | AMD B850 |
| Form factor | Micro-ATX |
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Motherboard processor |
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| Processor family | AMD |
| Processor Socket | Socket AM5 |
| Supported Processors |
Ryzen 9000, Ryzen 8000G, Ryzen 7000 |
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Motherboard Memory |
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| Number of DIMM Slots | 4x |
| Maximum RAM | 256 GB |
| Memory Type | DDR5 |
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Non-ECC, Unbuffered |
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Motherboard Expansion Slots |
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| PCI-Express x16 (total) | 1x |
| PCI-Express 5.0 x16 | 1x |
| PCI-Express x4 | 1x |
| M.2 | 3x |
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Motherboard External Ports |
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| DisplayPort | 1x |
| HDMI | 1x |
| Ethernet (LAN) | 1 x |
| 3.5 mm jack | 3x |
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Motherboard internal connectors |
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| SATA 6 GB/s | 4x |
| USB 3.0 Header | 3x |
| USB 2.0 Header | 2x |
| TPM Header | Yes |
| Other |
1x Speaker Header |
| RAID | 36535 |
| Power connectors |
1x 24-pin ATX, 1x 8-pin EPS12V, 1x 4-pin ATX12V |
| Audio channels | 7.1 |
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Motherboard Cooling |
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| 4-Pin CPU Fan | 2x |
| 4-Pin Case Fan | 3x |
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Motherboard Lighting |
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| 4-Pin RGB Header | 1x |
| 3-Pin ARGB Header | 3x |
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Motherboard Network |
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| LAN Controller |
1x RJ-45 (2.5GBase-T, Realtek RTL8125BG) |
| Transfer Rate |
10/100/1000/2500 Mb/s |
| WLAN |
Wi-Fi 6E (WLAN 802.11a/b/g/n/ac/ax) |
| Bluetooth | 5.2 |
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Motherboard Features |
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| USB BIOS Flashback | Yes |
| M.2 passive cooler | 1x |
| Diagnostic LED | Yes |
| Integrated I/O shield | Yes |
| Audio+solid capacitors | Yes |
