Asrock B850M Steel Legend WiFi mATX Motherboard | AM5 | 4x DDR5 Slots | Wi-Fi 7
KEY FEATURES
- Supports AMD Socket AM5 Ryzen™ 9000, 8000 and 7000 Series Processors
- 12+2+1 Phase Power Design, Dr.MOS for VCore+SOC+MISC
- 4 x DDR5 DIMMs, Supports Dual Channel, up to 8000+ (OC)
- 1 PCIe 5.0 x16, 1 PCIe 4.0 x4
- Graphics Output Options: 1 HDMI, 1 DisplayPort
- Realtek ALC1220 7.1 CH HD Audio Codec, Nahimic Audio
- 1 Blazing M.2 (PCIe Gen5x4), 1 Hyper M.2 (PCIe Gen4x4), 1 M.2 (PCIe Gen4x2), 4 SATA3
- 2 USB 3.2 Gen2 Type-A+C (Rear), 1 USB 3.2 Gen1 Type-C (Front), 6 USB 3.2 Gen1 (2 Rear, 4 Front), 8 USB 2.0 (4 Rear, 4 Front)
- Realtek 2.5G LAN
- 802.11be WiFi 7 +Bluetooth
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Frequently Asked Questions
What processors are compatible with the Asrock B850M Steel Legend?
How many memory slots does this motherboard have?
Does it support Wi-Fi 7?
Asrock B850M Steel Legend WiFi mATX Motherboard | AM5 | 4x DDR5 Slots | Wi-Fi 7
Description
The Asrock B850M Steel Legend WiFi brings AMD's latest B850 chipset to a compact mATX form factor, making it an ideal choice for space-conscious builds that don't compromise on modern connectivity. This AM5 socket board supports the full range of current AMD processors, from Ryzen 7000 through to the latest 9000 series, while its striking white and steel aesthetic sets it apart from typical budget-focused boards. The B850 chipset positions this as a solid mainstream option that delivers the essential features most builders need without premium pricing.
Memory support extends up to 256GB across four DDR5 DIMM slots, giving plenty of room for future upgrades while supporting both ECC and standard memory modules. Storage flexibility comes through three M.2 slots: one PCIe 5.0 slot for the fastest NVMe drives, plus two PCIe 4.0 slots for additional storage or more budget-conscious options. The single PCIe 5.0 x16 slot handles modern graphics cards without bottlenecks, while an additional PCIe 4.0 x4 slot provides expansion room for capture cards or other peripherals.
Connectivity stands out as a key strength, with built-in Wi-Fi 7 and Bluetooth 5.4 eliminating the need for separate wireless cards in most builds. The 2.5 Gigabit LAN port future-proofs wired networking, and 7.1 channel audio handles most headphone and speaker setups. Asrock includes the practical extras that matter: M.2 standoffs for easy SSD installation, mounting screws, and a Wi-Fi antenna. The RGB header adds customization options for builders who want lighting effects, while dual CPU fan connectors provide flexible cooling management.
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Shipping Information
- Next Business Day: £6.99
- 2 days Delivery: £4.99
- 3- 5 Days Shipping: £3.99
- Orders Over £99.00: Free Standard Delivery
| Processor | |
|---|---|
| Processor manufacturer | AMD |
| Processor socket | Socket AM5 |
| Compatible processor series | AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series |
| Supported processor sockets | Socket AM5 |
| Memory | |
|---|---|
| Supported memory types | DDR5-SDRAM |
| Number of memory slots | 4 |
| Memory slots type | DIMM |
| Memory channels | Dual-channel |
| ECC сompatibility | ECC & Non-ECC |
| Maximum internal memory | 256 GB |
| Unbuffered memory | Yes |
| Storage controllers | |
|---|---|
| Supported storage drive types | HDD & SSD |
| Supported storage drive interfaces | PCI Express 4.0, PCI Express 5.0, SATA III |
| Number of storage drives supported | 7 |
| RAID support | Yes |
| RAID levels | 0, 1, 10 |
| Graphics | |
|---|---|
| Parallel processing technology support | Not supported |
| Maximum resolution | 3840 x 2160 pixels |
| HDCP | Yes |
| Internal I/O | |
|---|---|
| USB 2.0 connectors | 2 |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 3 |
| Number of SATA III connectors | 4 |
| Front panel audio connector | Yes |
| ATX Power connector (24-pin) | Yes |
| CPU fan connector | Yes |
| Number of CPU fan connectors | 2 |
| Number of chassis fan connectors | 3 |
| EPS power connector (8-pin) | Yes |
| Number of EPS power connectors (8-pin) | 1 |
| 12V power connector | Yes |
| TPM connector | Yes |
| RGB LED pin header | Yes |
| Number of RGB LED pin headers | 1 |
| Rear panel I/O ports | |
|---|---|
| USB 2.0 ports quantity | 4 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 1 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 1 |
| Ethernet LAN (RJ-45) ports | 1 |
| HDMI ports quantity | 1 |
| HDMI version | 2.1 |
| DisplayPorts quantity | 1 |
| DisplayPort version | 1.4 |
| Line-in | Yes |
| Headphone outputs | 3 |
| Microphone in | Yes |
| WiFi-AP antenna jack | 2 |
| USB connector type | USB Type-A, USB Type-C |
| Network | |
|---|---|
| Ethernet LAN | Yes |
| Ethernet interface type | 2.5 Gigabit Ethernet |
| LAN controller | Dragon RTL8125BG |
| Wi-Fi | Yes |
| Top Wi-Fi standard | Wi-Fi 7 (802.11be) |
| Wi-Fi standards | 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E (802.11ax), Wi-Fi 7 (802.11be) |
| Bluetooth | Yes |
| Bluetooth version | 5.4 |
| Features | |
|---|---|
| Component for | PC |
| Motherboard form factor | micro ATX |
| Motherboard chipset family | AMD |
| Motherboard chipset | AMD B850 |
| Audio chip | Realtek ALC1220 |
| Audio output channels | 7.1 channels |
| Product colour | White |
| Windows operating systems supported | Windows 10 x64, Windows 11 x64 |
| Certification | FCC, CE, ErP/EuP |
| Expansion slots | |
|---|---|
| PCI Express x4 (Gen 4.x) slots | 1 |
| PCI Express x16 (Gen 5.x) slots | 1 |
| Number of M.2 (M) slots | 3 |
| 1st M.2 largest key size | 2280 |
| 1st M.2 highest PCI Express generation | 5.0 |
| 2nd M.2 largest key size | 2280 |
| 2nd M.2 highest PCI Express generation | 4.0 |
| 3rd M.2 largest key size | 2280 |
| 3rd M.2 highest PCI Express generation | 4.0 |
| BIOS | |
|---|---|
| BIOS type | UEFI AMI |
| BIOS memory size | 256 Mbit |
| Weight & dimensions | |
|---|---|
| Width | 244 mm |
| Depth | 244 mm |
| Packaging content | |
|---|---|
| M.2 standoff included | Yes |
| Antenna included | Yes |
| Screws included | Yes |
| Cables included | SATA |
Frequently Asked Questions
What processors are compatible with the Asrock B850M Steel Legend?
How many memory slots does this motherboard have?
Does it support Wi-Fi 7?
What is the maximum internal memory supported?
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