Build a modern AMD gaming rig on this AM5 µATX motherboard powered by the AMD B850 chipset. It supports a single Ryzen CPU and up to 256GB DDR5 across 4 DIMM slots, with speeds up to 7600 MT/s for fast, responsive performance. Expansion is ready for today’s GPUs with 1× PCIe x16, plus an additional PCIe x4 slot. For storage, you get 2× M.2 (PCIe, M-Key) and 4× SATA ports, ideal for combining a fast NVMe boot drive with large game libraries. Connectivity is strong with 2.5G LAN (Realtek RTL8125BG), Wi-Fi 6, and Bluetooth 5.3, plus HDMI + DisplayPort (requires a CPU with iGPU). Rear I/O includes 2× USB-A 3.2 Gen1 and 6× USB 2.0, while internal headers add more USB including USB-C. EFI BIOS and TPM support round out a future-ready platform.
SAPPHIRE PULSE B850M WIFI, Motherboard
| type | Mainboard |
| EAN | 4895106296947 |
| Manufacturer's No. | 52123-04-40G |
| base | AM5 |
| Maximum supported CPUs | 1 |
| operating system | Support |
| processor | Supported models |
| Chipset | AMD B850 |
| slots | |
| PCIe x16 |
1x (of which: 1x PCIe x16) |
| PCIe x4 | 1 |
| BIOS | EFI BIOS |
| Form factor | µATX |
| use | PC |
| power supply |
ATX12V (24-Pin + 2x 8-Pin) |
| maximum | 256 GB |
| Number of sockets | 4x DDR5 |
| supported standards |
DDR5 up to 7600 MT/s |
| Channels | 2 |
| Maximum storage ranks | 8 |
| Memory controller in CPU | Yes |
| Maximum data density | 8192 Mbit |
|
External connections |
|
| USB-A 3.2 Gen 1 (5 Gbit/s) | 2 |
| A notice: |
The designation USB 3.2 Gen 1 corresponds to the earlier designations USB 3.1 Gen 1 and USB 3.0. |
| USB-A 2.0 | 6 |
| HDMI | 1 |
| DisplayPort-Out | 1 |
| microphone | 1 |
| Line-In | 1 |
| Line-Out | 1 |
| RJ-45 | 1 |
| Bluetooth | Yes |
| Wi-Fi | Yes |
|
Internal connections |
|
| SATA | 4 |
| M.2 | 2 |
| M.2 Module Key | M |
| M.2 interface | PCIe |
|
Connections (optional) |
|
| USB 3.2 Gen 1 (5 Gbit/s) | 2 |
| USB-C 3.2 Gen 1 (5 Gbit/s | 1 |
| USB 2.0 | 4 |
| TPM | Yes |
| SATA controller | AMD B850 |
| directly usable RAID levels | 36535 |
| USB controller | AMD B850 |
| Onboard graphics |
The motherboard's graphics ports can only be used when using a CPU with an integrated graphics chip. |
| Sound | Realtek ALC897 |
| LAN |
Realtek RTL8125BG 2.5G LAN |
|
Wi-Fi 6 + Bluetooth 5.3 |
|
| Further information |
To support the latest processor cores, a BIOS update may be required. |
| Dimensions |
Width: 235 mm x Height: 244 mm |
| Weight | 1482 g |
