ASRock B850M Pro RS AMD AM5 Socket Motherboard, Micro-ATX, 4x DDR5 Slots, 3x M.2 Sockets, Fitted I/O Shield, 2.5GbE LAN, 1x DisplayPort / 1x HDMI Port

Key Features

• ?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, 1 M.2 Key E for WiFi
• Graphics Output Options: 1 HDMI, 1 DisplayPort
• Realtek ALC897 7.1 CH HD Audio Codec, Nahimic Audio
• 1 x Blazing M.2 (PCIe Gen5x4)
• 2 x Hyper M.2 (PCIe Gen4x4)
• 4 x SATA3
• 1 x USB 3.2 Gen2 Type-C (Rear)
• 1 x USB 3.2 Gen2 Type-A (Rear)
• 1 x USB 3.2 Gen1 Type-C (Front)
• 6 x USB 3.2 Gen1 (2 Rear, 4 Front)
• 8 x USB 2.0 (4 Rear, 4 Front)
• Realtek 2.5G LAN
• Supports M.2 Bottom Heatsink,
• BIOS Flashback

8 + 2 + 1 POWER PHASE DESIGN + DR.MOS

Vcore with Dr.MOS design, delivering smoother and neater power to the CPU.

BLAZING M.2 (PCIE GEN5 x4)

Supports up to 3 x NVMe M.2 SSDs and one of which is able to accommodates the latest PCI Express 5.0 standard.

PRE-INSTALLED I/O SHIELD

ASRock pre-installs the I/O shield for you as an assembly helper to speed up the set-up process.

M.2 BOTTOM HEATSINK

Dissipate heat efficiently through the motherboard PCB, maximize performance while maintaining system stability.

USB 3.2 TYPE-C (FRONT + REAR)

Providing a blazing fast data transfer interface with reversible USB Type-C design that its the connector either way.

M.2 KEY E FOR WIFI

Users may upgrade wireless module by M.2 (Key E) slot.

Specification

Platform

Micro ATX Form Factor: 9.6 in x 9.6-in, 30.5 cm x 24.4 cm

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
• 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

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

Expansion Slot

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

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
• 15µ Gold Contact in VGA PCIe Slot (PCIE1)

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

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

Rear Panel I/O

• 2 x Antenna Mounting Points
• 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

Storage

CPU

• 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2280 PCIe Gen5x4 (128 Gb/s) mode*
• Chipset:
• 1 x Hyper M.2 Socket (M2_2, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode
• 1 x Hyper M.2 Socket (M2_3, 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 and Gen4x4 with 8000 (Phoenix 1 and Phoenix 2) series processors.

M2_3 will run at Gen4x4 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

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.

BIOS Feature

256Mb AMI UEFI Legal BIOS with GUI support

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

OS

Microsoft Windows 10 64-bit / 11 64-bit

Certifications

FCC, CE

ErP/EuP ready (ErP/EuP ready power supply is required)

Accessories

2 x SATA Data Cables

1 x Screw for M.2 Socket