B850M Pro RS WiFi
The ASRock B850M Pro RS WiFi is a Micro ATX AM5 motherboard on the B850 chipset. It supports DDR5 memory up to 8,000 MT/s and 3 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 B850M Pro RS WiFiis 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.
Max CPU power
225 W
The B850M Pro RS WiFi can reliably power a CPU drawing up to about 225 W from its 2x4+2+1 power-stage (VRM) layout. That’s the number that decides whether a board can run a power-hungry chip at full boost without throttling — comfortable for mainstream and most high-end CPUs.
Specifications
Platform
- Chipset
- B850
- Socket
- AM5
- Form factor
- Micro ATX
- MSRP
- $160.00
Memory
- Type
- DDR5
- Slots
- 4
- Max speed
- 8,000 MT/s
- Max capacity
- 192 GB
- Channels
- 2-channel
- ECC / memory
- UDIMM
Power & VRM
- Max CPU power
- 225 W
- Phase config
- 2x4+2+1
- VRM stages
- 50A DrMOS
- EPS power
- 8+4
- VRM heatsink
- Full coverage
Storage & Expansion
- M.2 slots
- 3
- M.2 layout
- 1× PCIe 5.0 ×4, 2× PCIe 4.0 ×4
- M.2 heatsinks
- Slots 1
- SATA ports
- 4 SATA3
- PCIe ×16 slots
- 1× PCIe 5.0 ×16
- Other PCIe slots
- 1× PCIe 4.0 ×4
Ethernet & Wi-Fi
- Realtek RTL8125BG
- 2.5 GbE
- Ethernet ports
- 1
- Wi-Fi
- Wi-Fi 6E
USB & I/O
- Rear USB-A
- 4× USB 2.0, 2× 5 Gbps, 1× 10 Gbps
- Rear USB-C
- 1× 10 Gbps
- Front USB-C
- 1× 5Gbps
- Front USB 3 headers
- 2
- Front USB 2 headers
- 2
Audio & Video
- Audio codec
- ALC897
- Audio jacks
- 3
- HDMI
- HDMI 2.1
- DisplayPort
- DP 1.4
Cooling, RGB & Design
- Fan headers
- 5
- 12V RGB headers
- 1
- 5V ARGB headers
- 3
- PCB colour
- Black
- Heatsink colour
- Silver, Grey
Onboard & Diagnostics
- BIOS Flashback
- Yes (rear)
- Diagnostics
- Debug LEDs
- TPM header
- Yes
Compare the B850M Pro RS WiFi against every other board on the motherboard comparison table. Not sure it fits your chip? The socket compatibility guide explains AM5 pairings.
Where to buy the B850M Pro RS WiFi
Every in-stock retailer offer we track, cheapest first.
| Retailer | Availability | Price | Buy |
|---|---|---|---|
| Amazon | — | See on Amazon |  |
| Newegg | In stock | $159.99 |  |
The B850M Pro RS WiFi starts from $139.99 across 2 retailers (Wi-Fi 6E). Prices update daily from live stock.
Which CPUs fit the B850M Pro RS WiFi?
Compare all CPUs →In-stock AM5 processors this board can run — socket-matched and within its 225 W VRM budget, ranked by gaming value (performance per dollar).
| Processor | Cores | Gaming | From | |
|---|---|---|---|---|
 | Ryzen 5 7600X AMD | 6/12 | 67.3 | $160.00 |
 | Ryzen 5 9600X AMD | 6/12 | 72.6 | $177.95 |
 | Ryzen 5 8400F AMD | 6/12 | 50.0 | $125.61 |
 | Ryzen 5 7500F AMD | 6/12 | 61.0 | $174.57 |
 | Ryzen 5 8500G AMD | 6/12 | 52.0 | $148.90 |
 | Ryzen 7 7700X AMD | 8/16 | 70.6 | $223.99 |
 | Ryzen 5 7600 AMD | 6/12 | 63.4 | $209.90 |
 | Ryzen 5 8600G AMD | 6/12 | 55.0 | $187.88 |
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