ASRock B850M PRO RS WIFI AM5 AMD Micro ATX Motherboard
Overview :
- Supports AMD Socket AM5 Ryzen™ 9000, 8000 and 7000 Series Processors
- 8+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 ALC897 7.1 CH HD Audio Codec, Nahimic Audio
- 1 Blazing M.2 (PCIe Gen5x4)
- 2 Hyper M.2 (PCIe Gen4x4)
- 4 SATA3
- 1 USB 3.2 Gen2 Type-C (Rear)
- 1 USB 3.2 Gen2 Type-A (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
- 802.11axe WiFi 6E +Bluetooth
- Supports M.2 Bottom Heatsink, BIOS Flashback
Specification :
Unique Feature |
Superb Productivity |
| – PCIe Gen5 (Graphics, M.2) |
| – Dual Channel DDR5 |
| Rock-Solid Durability |
| – 8+2+1 Power Phase, Dr.MOS for VCore+SOC+MISC |
| – Pre-Installed I/O Shield |
| Ultrafast Connectivity |
| – 2.5G LAN, 802.11axe Wi-Fi 6E Module |
| EZ Update |
| – BIOS Flashback Button |
| – ASRock Auto Driver Installer |
| EZ Troubleshooter |
| – ASRock Post Status Checker |
CPU |
– Supports AMD Socket AM5 Ryzen™ 9000, 8000 and 7000 Series Processors* |
*The availability of expansion slots may vary by CPU. Please refer to PCIe/M.2 Bandwidth Table for details. |
Chipset |
– AMD B850 |
Memory |
– Dual Channel DDR5 Memory Technology |
| – 4 x DDR5 DIMM Slots |
| – Supports DDR5 ECC/non-ECC, un-buffered memory up to 8000+(OC) |
| – Max. capacity of system memory: 256GB |
| – Supports Extreme Memory Profile (XMP) and EXTended Profiles for Overclocking (EXPO) memory modules |
BIOS |
– 256Mb AMI UEFI Legal BIOS with GUI support |
Graphics |
Integrated AMD RDNA™ graphics (Actual support may vary by CPU) |
| – 1 x HDMI 2.1 TMDS/FRL 8G Compatible, supports HDR, HDCP 2.3 and max. resolution up to 4K 120Hz |
| – 1 x DisplayPort 1.4 with DSC (compressed), supports HDCP 2.3 and max. resolution up to 4K 120Hz |
Audio |
– 7.1 CH HD Audio (Realtek ALC897 Audio Codec) |
| – Nahimic Audio |
LAN |
– 2.5 Gigabit LAN 10/100/1000/2500 Mb/s |
| – Dragon RTL8125BG |
| – Supports Dragon 2.5G LAN Software |
| – Smart Auto Adjust Bandwidth Control |
| – Visual User Friendly UI |
| – Visual Network Usage Statistics |
| – Optimized Default Setting for Game, Browser, and Streaming Modes |
| – User Customized Priority Control |
Wireless LAN |
– 802.11axe Wi-Fi 6E Module |
| – Supports IEEE 802.11a/b/g/n/ac/ax/axe |
| – Supports Dual-Band 2×2 with extended 6GHz band* support |
| – 2 antennas to support 2 (Transmit) x 2 (Receive) diversity technology |
| – Supports Bluetooth 5.2 |
| – Supports MU-MIMO |
*Wi-Fi 6E (6GHz band) will be supported by Microsoft Windows® 11. The availability will depend on the different regulation status of each country and region. It will be activated (for supported countries) through Windows® Update and software updates once available. |
| A 6GHz compatible router is required for 6E functionality. |
Slots |
CPU: |
| – 1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode* |
| – 1 x PCIe 4.0 x4 Slot (PCIE2), supports x4 mode* |
| Chipset: |
| – 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module |
| – 15μ Gold Contact in VGA PCIe Slot (PCIE1) |
*PCIE1 will run at Gen5x16 with 9000 and 7000 series processors, Gen4x8 with 8000 (Phoenix 1) series processors and Gen4x4 with 8000 (Phoenix 2) series processors. |
| If M2_3 is occupied, PCIE2 will be disabled. |
| Supports NVMe SSD as boot disks |
Storage |
CPU: |
| – 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2280 PCIe Gen5x4 (128 Gb/s) mode* |
| – 1 x Hyper M.2 Socket (M2_3, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode* |
| Chipset: |
| – 1 x Hyper M.2 Socket (M2_2, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode* |
| – 4 x SATA3 6.0 Gb/s Connectors |
*Supports NVMe SSD as boot disks |
| M2_1 is the first priority for M.2 installation. |
| M2_1 will run at Gen5x4 with 9000 and 7000 series processors, Gen4x4 with 8000 (Phoenix 1) series processors and Gen4x2 with 8000 (Phoenix 2) series processors. |
| If M2_3 is occupied, PCIE2 will be disabled. |
RAID |
– Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices |
| – Supports RAID 0, RAID 1 and RAID 10 for M.2 NVMe storage devices* |
* Requires additional M.2 NVMe expansion cards to support RAID 10 |
USB |
CPU: |
| – 1 x USB 3.2 Gen2 Type-C (Rear) |
| – 1 x USB 3.2 Gen2 Type-A (Rear) |
| Chipset: |
| – 1 x USB 3.2 Gen1 Type-C (Front) |
| – 6 x USB 3.2 Gen1 Type-A (2 Rear, 4 Front) |
| – 8 x USB 2.0 (4 Rear, 4 Front) |
* All USB ports support ESD Protection |
Connector |
– 1 x SPI TPM Header |
| – 1 x Power LED and Speaker Header |
| – 1 x RGB LED Header* |
| – 3 x Addressable LED Headers** |
| – 2 x CPU Fan Connectors (4-pin) (Smart Fan Speed Control)*** |
| – 3 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)*** |
| – 1 x 24 pin ATX Power Connector |
| – 1 x 8 pin 12V Power Connector (Hi-Density Power Connector) |
| – 1 x 4 pin 12V Power Connector (Hi-Density Power Connector) |
| – 1 x Front Panel Audio Connector |
| – 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) |
| – 2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports) |
| – 1 x Front Panel Type C USB 3.2 Gen1 Header |
* Supports in total up to 12V/3A, 36W LED Strip |
| ** Support in total up to 5V/3A, 15W LED Strip |
| *** CPU_FAN1 supports the fan power up to 1A (12W). |
| CPU_FAN2 and CHA_FAN1~3 support the fan power up to 3A (36W). |
| CPU_FAN2 and CHA_FAN1~3 can auto detect if 3-pin or 4-pin fan is in use. |
Rear Panel I/O |
– 2 x Antenna Ports |
| – 1 x HDMI Port |
| – 1 x DisplayPort 1.4 |
| – 1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) |
| – 1 x USB 3.2 Gen2 Type-C Port |
| – 2 x USB 3.2 Gen1 Ports |
| – 4 x USB 2.0 Ports |
| – 1 x RJ-45 LAN Port |
| – 1 x BIOS Flashback Button |
| – HD Audio Jacks: Line in / Front Speaker / Microphone |
Software and UEFI |
Software |
| – ASRock Motherboard Utility (A-Tuning) |
| – ASRock Dragon 2.5G LAN Software |
| – ASRock Polychrome SYNC* |
| UEFI |
| – ASRock EZ Mode |
| – ASRock Full HD UEFI |
| – ASRock Auto Driver Installer |
| – ASRock Instant Flash |
*These utilities can be downloaded from ASRock Live Update & APP Shop. |
Accessories |
– 2 x SATA Data Cables |
| – 2 x ASRock WiFi 2.4/5/6 GHz Antennas |
Form Factor |
– Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm |
OS |
– Microsoft Windows® 10 64-bit / 11 64-bit |
Certifications |
– FCC, CE |
| – ErP/EuP ready (ErP/EuP ready power supply is required) |

