ASRock B850M Pro-A AMD AM5 Socket Motherboard

Description

ASRock B850M PRO A

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

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 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*NVMe M.2 SSDs and one of which is able to accommodates the latest PCI Express 5.0 standard.

USB 3.2 GEN2 TYPE-C

The USB 3.2 Gen2 Type-C delivers up to 10 Gbps data transfer rate.

FRONT USB 3.2 GEN1 TYPE-C

Front USB 3.2 Gen1 Type-C header delivers up to 5Gbps data transfer rate and reversible USB design to the front panel of computer case.

POLYCHROME SYNC

The RGB LED header allows user to create unique PC style easily.

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, 24.4 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

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

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

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)

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

1 x I/O Shield

2 x SATA Data Cables

1 x Screw for M.2 Socket

Product Codes:

Manufacter Part Number: B850M Pro-A

EAN: 4711581490390