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Discover the ultimate foundation for your high-performance PC with the Asrock B850 M Steel Legend WiFi DDR5 mATX Motherboard. Engineered to power up the latest AMD processors, this motherboard blends cutting-edge technology with robust durability, providing an exceptional base for gamers and creators alike.
- Supports cutting-edge DDR5 memory for superior speed and efficiency
- Built-in WiFi 6 technology for fast and stable wireless connections
- Reinforced PCIe 5.0 slots support the latest graphics cards
- Comprehensive cooling solutions ensure peak performance under heavy loads
- USB 3.2 Gen2x2 ports deliver ultra-fast data transfer rates
The Asrock B850 M Steel Legend is designed with the enthusiast in mind, offering reliable performance and future-ready capabilities. Whether you’re gaming, streaming, or creating content, this motherboard provides the speed and stability needed for a seamless experience. Enjoy the freedom of wireless connectivity and the power of next-gen processing, all packed into a sleek mATX form factor that fits perfectly into compact setups.
Crafted with high-quality materials, this motherboard promises long-lasting performance. Elevate your system to legendary status and unleash your full potential with the Asrock B850 M Steel Legend.
| Category | Details |
|---|---|
| Unique Features | Superb Productivity– PCIe Gen5 (Graphics, M.2)- Dual Channel DDR5
Rock-Solid Durability– 12+2+1 Power Phase, Dr.MOS for VCore+SOC+MISC with Enlarged Heatsink Armor- Flexible Integrated I/O Shield- 20K Long-lasting Black Caps Ultrafast Connectivity– 2.5G LAN, 802.11be Wi-Fi 7 EZ Update– BIOS Flashback Button- ASRock Auto Driver Installer EZ Troubleshooter– ASRock Post Status Checker |
| CPU | Supports AMD Socket AM5 Ryzen™ 9000, 8000, and 7000 Series ProcessorsAvailability of expansion slots may vary by CPU |
| Chipset | AMD B850 |
| Memory | – Dual Channel DDR5- 4 x DDR5 DIMM Slots- Supports ECC/non-ECC, un-buffered memory up to 8000+(OC)- Max Capacity: 256GB- Supports XMP & EXPO |
| BIOS | 256Mb AMI UEFI Legal BIOS with GUI support |
| Graphics | Integrated AMD RDNA™ (varies by CPU)- 1 x HDMI 2.1 (4K 120Hz, HDR, HDCP 2.3)- 1 x DisplayPort 1.4 (4K 120Hz, HDCP 2.3) |
| Audio | – 7.1 CH HD Audio (Realtek ALC1220)- Impedance Sensing- Isolated PCB layers for L/R channels- Nahimic Audio |
| LAN | – 2.5G LAN (Dragon RTL8125BG)- Dragon 2.5G LAN Software- Bandwidth Control- Network Statistics UI- Game/Browser/Streaming Modes- Custom Priority Control |
| Wireless | – Wi-Fi 7 (802.11be 2×2, 2.4/5/6GHz)- 160MHz bandwidth- Bluetooth 5.4- MU-MIMOWi-Fi 7 supports Windows 11 only. 6GHz band availability depends on regional regulations. |
| Expansion Slots | CPU:– 1 x PCIe 5.0 x16 (PCIE1)– 1 x PCIe 4.0 x4 (PCIE2)
Chipset:– 1 x M.2 Key E (WiFi/BT)- 15μ Gold Contact in VGA PCIe SlotPerformance varies by CPU series |
| Storage | CPU:– 1 x M.2 (Gen5x4, 2280)
Chipset:– 1 x M.2 (Gen4x2, 2260/2280)- 1 x M.2 (Gen4x4, 2260/2280)- 4 x SATA3 6Gb/sM2_1 runs at Gen5x4 (Ryzen 9000/7000), Gen4x4 or Gen4x2 (Ryzen 8000) |
| RAID | Supports RAID 0, 1, 10 for SATA and M.2 NVMeRAID 10 on M.2 requires expansion cards |
| USB | CPU:– 1 x USB 3.2 Gen2 Type-C (Rear)- 1 x USB 3.2 Gen2 Type-A (Rear)- 1 x USB 3.2 Gen1 Type-A (Rear)
Chipset:– 1 x USB 3.2 Gen1 Type-C (Front)- 5 x USB 3.2 Gen1 Type-A (1 Rear, 4 Front)- 8 x USB 2.0 (4 Rear, 4 Front)All with ESD Protection |
| Connectors | – TPM, Thermistor, LED, RGB, ARGB- 2 x CPU Fan, 3 x Chassis Fan- 24-pin ATX, 8-pin + 4-pin 12V- Front Panel Audio, USB (2.0, 3.2 Gen1, Type-C)*LED Headers support 36W/15W total power output*Fan headers support 1A–3A with auto detection |
| Rear I/O | – 2 x Antenna Ports- HDMI, DisplayPort- 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- Audio Jacks: Line In / Speaker / Mic |
| Software & UEFI | Software:– A-Tuning, Dragon LAN, Polychrome SYNCUEFI:– EZ Mode, Full HD GUI, Auto Driver Installer, Instant Flash |
| Accessories | – 2 x SATA Cables- 2 x WiFi Antennas- 1 x Thermistor Cable- 2 x M.2 Screws, 1 x M.2 Standoff |
| Form Factor | Micro ATX (9.6″ x 9.6″ / 24.4 cm x 24.4 cm), 2oz Copper PCB |
| OS Support | Windows 10 64-bit / Windows 11 64-bit |
| Certifications | FCC, CE, ErP/EuP Ready (requires compatible PSU) |





1 review for Asrock B850M Steel Legend Wifi DDR5 mATX Motherboard