B860M Steel Legend WiFi
The ASRock B860M Steel Legend WiFi is a Micro ATX LGA1851 motherboard on the B860 chipset. It supports DDR5 memory up to 8,666 MT/s and 4 M.2 slots. Full specs, power delivery, and current prices are below.
Prices update regularly and may differ at the retailer. This page contains affiliate links.
MaxMyBuild scores
How we score →How well the B860M Steel Legend WiFi is equipped for gaming and for productivity, scored 0–100 from its specs. Scores are fit-for-purpose: a capable board can top the gaming score without being the most expensive.
Weighs CPU power delivery, memory speed support, the GPU PCIe slot, Wi-Fi version, and M.2 storage — the things that actually matter for a gaming build.
Rewards fast, plentiful M.2 storage and USB I/O, PCIe expansion, memory capacity and slots — what matters for content creation and heavy multitasking.
CPU power
576 W
Overbuilt · 2.3x
Wired for about 576 W, roughly 2.3x the 250 W that the top Core Ultra 9 chips pull, so nothing on this socket will run it short of power. The figure comes from its 2x6+1+1+1+1 power-stage (VRM) layout and 8+8 EPS connectors. It is a rating of what the board is built to deliver, not a measurement, so treat it as headroom rather than a guarantee.
Specifications
Platform
- Chipset
- B860
- Socket
- LGA1851
- Form factor
- Micro ATX
- MSRP
- $180.00
Memory
- Type
- DDR5
- Slots
- 4
- Max speed
- 8,666 MT/s
- Max capacity
- 256 GB
- Channels
- 2-channel
- ECC / memory
- UDIMM
Power & VRM
- CPU power
- 576 W
- Phase config
- 2x6+1+1+1+1
- VRM stages
- 80A SPS
- EPS power
- 8+8
Storage & Expansion
- M.2 slots
- 4
- M.2 layout
- 1× PCIe 5.0 ×4, 3× PCIe 4.0 ×4
- M.2 heatsinks
- Slots 1, 2, 4
- SATA ports
- 4 SATA3
- PCIe ×16 slots
- 1× PCIe 5.0 ×16
Ethernet & Wi-Fi
- Realtek RTL8125BG
- 2.5 GbE
- Ethernet ports
- 1
- Wi-Fi
- Wi-Fi 6E
USB & I/O
- Front USB-C
- 1× 10Gbps
Audio & Video
- Audio codec
- ALC1220
- Audio jacks
- 2
- S/PDIF out
- Yes
- HDMI
- 1 port
- DisplayPort
- 1 port
- USB-C video
- 1 port
Cooling, RGB & Design
- Fan headers
- 7
- 12V RGB headers
- 1
- 5V ARGB headers
- 3
Onboard & Diagnostics
- BIOS Flashback
- Yes (Rear)
- Diagnostics
- Debug LEDs
Compare the B860M Steel Legend WiFi against every other board on the motherboard comparison table. Not sure it fits your chip? The socket compatibility guide explains LGA1851 pairings.
Where to buy the B860M Steel Legend WiFi
Every in-stock retailer offer we track, cheapest first.
| Retailer | Availability | Price | Buy |
|---|---|---|---|
| Amazon | In stock | $139.99 |  |
The B860M Steel Legend WiFi starts from $139.99 across 1 retailer (Wi-Fi 6E). Prices update daily from live stock.
Which CPUs fit the B860M Steel Legend WiFi?
Compare all CPUs →In-stock LGA1851 processors this board can run, socket-matched and within its 576 W power budget, ranked by gaming value (performance per dollar).
| Processor | Cores | Gaming | From | |
|---|---|---|---|---|
 | Core Ultra 5 225F Intel | 10/10 | 62.5 | $149.99 |
 | Core Ultra 5 245KF Intel | 14/14 | 67.1 | $179.00 |
 | Core Ultra 5 250KF Plus Intel | 18/18 | 73.3 | $199.99 |
 | Core Ultra 5 225 Intel | 10/10 | 62.5 | $178.55 |
 | Core Ultra 5 245K Intel | 14/14 | 67.1 | $193.83 |
 | Core Ultra 5 250K Plus Intel | 18/18 | 73.3 | $218.99 |
 | Core Ultra 7 270K Plus Intel | 24/24 | 77.5 | $252.22 |
 | Core Ultra 7 265 Intel | 20/20 | 70.3 | $279.99 |
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