MAINBOARD (AM5) ASROCK B850M PRO RS WIFI DDR5

B850M PRO RS WIFII DDR5

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.

AMD

AM5

AMD B850

– 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

8000

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

N/A

– 7.1 CH HD Audio (Realtek ALC897 Audio Codec)
– Nahimic Audio

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

PCIe 5.0

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

NVMe

3

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

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.

Microsoft Windows® 10 64-bit / 11 64-bit

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

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.

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

– 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

– 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

*The Wi-Fi 6E module is supported by Microsoft Windows® 11 only. There is no driver available for Windows® 10. The availability of the 6GHz band 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.

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)

Micro ATX

256Mb AMI UEFI Legal BIOS with GUI support

N/A

2 x SATA Data Cables
2 x ASRock WiFi 2.4/5/6 GHz Antennas