Power your next AMD gaming build with this ATX AM5 motherboard featuring the AMD B850 chipset and support for Ryzen 7000, 8000G/F, and 9000 series CPUs. It’s ready for Windows 10 and Windows 11, and delivers strong performance with up to 256GB DDR5 across four DIMM slots, supporting memory speeds up to 8000 MT/s. Expand easily with three PCIe slots (x16/x4/x2) and fast storage options including 3x PCIe M.2 slots plus 4x SATA ports. Connectivity is modern with 2.5G Realtek LAN, Wi-Fi 7, and Bluetooth 5.3. Rear I/O includes DisplayPort, USB-C, USB 3.2 Gen 1, and USB 2.0, plus Realtek ALC897 audio. Note: a BIOS update may be required for the newest CPUs.
SAPPHIRE NITRO+ B850A WIFI7, motherboard (black/grey)
| type | Mainboard |
| Color | black/grey |
| EAN | 4895106296930 |
| Manufacturer's No. | 52123-03-40G |
| base | AM5 |
| Maximum supported CPUs | 1 |
|
operating system |
|
| Support |
Windows 10 ready, Windows 11 ready |
| processor | |
| Supported models |
Ryzen 5 7xxx (Raphael), Ryzen 5 7xxxX (Raphael), Ryzen 5 7xxxF (Raphael), Ryzen 5 7xxxX3D (Raphael), Ryzen 5 8xxxF (Phoenix), Ryzen 5 8xxxG (Phoenix), Ryzen 5 9xxx (Granite Ridge), Ryzen 5 9xxxX (Granite Ridge), Ryzen 7 7xxx (Raphael), Ryzen 7 7xxxX (Raphael), Ryzen 7 7xxxX3D (Raphael), Ryzen 7 8xxxG (Phoenix), Ryzen 7 8xxxF (Phoenix), Ryzen 7 9xxxX (Granite Ridge), Ryzen 7 9xxxX3D (Granite Ridge), Ryzen 9 7xxx (Raphael), Ryzen 9 7xxxX (Raphael), Ryzen 9 7xxxX3D (Raphael), Ryzen 9 9xxxX (Granite Ridge), Ryzen 9 9xxxX3D (Granite Ridge) |
| Chipset | AMD B850 |
| slots | |
| PCIe x16 |
3x (of which: 1x PCIe x16, 1x PCIe x4, 1x PCIe x2) |
| BIOS | |
| EFI BIOS | Yes |
| Form factor | ATX |
| use | PC |
| power supply |
ATX12V (24-Pin + 2x 8-Pin) |
| memory | |
| maximum | 256 GB |
| Number of sockets | 4x DDR5 |
| supported standards |
DDR5 up to 8000 MT/s |
| Channels | 2 |
| Maximum storage ranks | 8 |
| Memory controller in CPU | Yes |
| Maximum data density | 8192 Mbit |
|
External connections |
|
| USB-C 3.2 Gen 1 (5 Gbit/s) | 1 |
| USB-A 3.2 Gen 1 (5 Gbit/s) | 3 |
| 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 | 4 |
| DisplayPort-Out | 1 |
| microphone | 1 |
| Line-In | 1 |
| Line-Out | 4 |
| RJ-45 | 1 |
| Bluetooth | Yes |
| Wi-Fi | Yes |
|
Internal connections |
|
| SATA | 4 |
| M.2 | 3 |
| 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 |
|
WiFi 7 + Bluetooth 5.3 |
|
| Further information |
To support the latest processor cores, a BIOS update may be required. |
| Dimensions |
Width: 235 mm x Height: 305 mm |
| Warning and safety instructions |
Warning: |
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