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Pro-A series is designed for enhanced stability, durability, and efficiency, it offers reliable performance, user-friendly features and a streamlined aesthetic, making it ideal for daily computing needs. Optimized for stability, durability, and efficiency. It combines reliable performance, user-friendly features and streamlined style for daily computing tasks. Derived from the “built for stable and reliable” designing concept, ASRock does not compromise on any details. This motherboard is built with high quality materials, enthusiasts are able to enjoy the boost of DDR5 memory overclocking performance by enabling the pre-tested profiles. Make sure the memory modules are Intel XMP/AMD EXPO capable and overclocking can be made so affordable, satisfying and absolutely no sweat at all.

CPU

AMD Socket AM5

  • Supports AMD Ryzen 7000 / 8000 / 9000 Series Desktop Processors
ChipsetAMD B850
Memory

4 x DDR5 DIMM sockets supporting up to 256 GB of system memory

  • Dual Channel DDR5 Memory Technology
  • Supports DDR5 ECC/non-ECC, un-buffered memory up to 8000+(OC)
  • Supports Extreme Memory Profile (XMP) and EXTended Profiles for Overclocking (EXPO) memory modules
Onboard Graphics

Integrated Graphics Processor with AMD Radeon Graphics support:

  • 1 x HDMI 2.1 TMDS/FRL 8G Compatible
    • Supports HDR, HDCP 2.3 and max. resolution up to 4K 120Hz
  • 1 x USB 3.2 Gen1 Type-C
    • Supports DP 1.4 HBR3 and max. resolution up to 4K 60Hz
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
Wireless Communication Module

802.11axe Wi-Fi 6E Module

  • Supports IEEE 802.11a/b/g/n/ac/ax/axe
  • Supports Dual-Band 2x2 with extended 6GHz band support
  • 2 antennas to support 2 (Transmit) x 2 (Receive) diversity technology
  • Supports MU-MIMO

Supports Bluetooth 5.2

Expansion Slots

CPU:

  • 1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode
    • 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.

Chipset:

  • 1 x PCIe 4.0 x16 Slot (PCIE2), supports x4 mode
    • If M2_3 is occupied, PCIE2 will be disabled.
  • 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module
Storage Interface

CPU:

  • 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2280 PCIe Gen5x4 (128 Gb/s) mode
    • 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
  • 1 x Hyper M.2 Socket (M2_2, Key M), supports type 2280 PCIe Gen4x4 (64 Gb/s) mode
    • M2_2 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.
  • 1 x Ultra M.2 Socket (M2_4, Key M), supports type 2280 PCIe Gen3x4 (32 Gb/s) mode

Chipset:

  • 1 x Hyper M.2 Socket (M2_3, Key M), supports type 2230/2242/2260/2280 PCIe Gen4x4 (64 Gb/s) mode
    • If M2_3 is occupied, PCIE2 will be disabled.
  • 1 x Ultra M.2 Socket (M2_4, Key M), supports type 2280 PCIe Gen3x4 (32 Gb/s) mode
  • 2 x SATA3 6.0 Gb/s Connectors

ASMedia ASM1061

  • 2 x SATA3 6.0 Gb/s Connectors

Supports RAID 0 and RAID 1 for SATA storage devices

Supports RAID 0, RAID 1 and RAID 10 for M.2 NVMe storage devices

USB

CPU:

  • 1 x USB 3.2 Gen2 Type-C (Rear)
  • 1 x USB 3.2 Gen1 Type-C (Rear)
  • 2 x USB 3.2 Gen1 Type-A (Rear (USB32_1 and USB32_2))

Chipset:

  • 1 x USB 3.2 Gen2x2 Type-C (Front)
  • 4 x USB 3.2 Gen1 Type-A (2 Rear (USB32_3 and USB32_4), 2 Front)
  • 9 x USB 2.0 (6 Rear, 3 Front)

All USB ports support ESD Protection

Internal I/O Connectors
  • 1 x SPI TPM Header
  • 1 x Power LED and Speaker Header
  • 1 x RGB LED Header
    • Supports in total up to 12V/3A, 36W LED Strip
  • 3 x Addressable LED Headers
    • Support in total up to 5V/3A, 15W LED Strip
  • 2 x CPU Fan Connectors (4-pin) (Smart Fan Speed Control)
    • CPU_FAN1 supports the fan power up to 1A (12W).
    • CPU_FAN2, CHA_FAN1~4 and AIO_PUMP support the fan power up to 3A (36W).
    • CPU_FAN2, CHA_FAN1~4 and AIO_PUMP can auto detect if 3-pin or 4-pin fan is in use.
  • 4 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)
    • CPU_FAN1 supports the fan power up to 1A (12W).
    • CPU_FAN2, CHA_FAN1~4 and AIO_PUMP support the fan power up to 3A (36W).
    • CPU_FAN2, CHA_FAN1~4 and AIO_PUMP can auto detect if 3-pin or 4-pin fan is in use.
  • 1 x AIO Pump Fan Connector (4-pin) (Smart Fan Speed Control)
    • CPU_FAN1 supports the fan power up to 1A (12W).
    • CPU_FAN2, CHA_FAN1~4 and AIO_PUMP support the fan power up to 3A (36W).
    • CPU_FAN2, CHA_FAN1~4 and AIO_PUMP can auto detect if 3-pin or 4-pin fan is in use.
  • 1 x 24 pin ATX Power Connector
  • 2 x 8 pin 12V Power Connectors (Hi-Density Power Connector)
  • 1 x Front Panel Audio Connector
  • 2 x USB 2.0 Headers (Support 3 USB 2.0 ports)
  • 1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports)
  • 1 x Front Panel Type C USB 3.2 Gen2x2 Header (20 Gb/s)
Back Panel Connectors
  • 2 x Antenna Ports
  • 1 x HDMI Port
  • 1 x USB 3.2 Gen2 Type-C Port (10 Gb/s)
  • 1 x USB 3.2 Gen1 Type-C Port (DP-alt mode supports DP1.4a)
  • 4 x USB 3.2 Gen1 Type-A Ports
  • 6 x USB 2.0 Ports
  • 1 x RJ-45 LAN Port
  • 1 x BIOS Flashback Button
  • HD Audio Jacks: Line in / Front Speaker / Microphone
I/O Controller

Not Specified

H/W Monitoring
  • Voltage detection
  • Temperature detection
  • Fan speed detection
  • Water cooling flow rate detection
  • Fan fail warning
  • Fan speed control
BIOS

1 x 256 Mbit flash

  • AMI UEFI Legal BIOS with GUI support
Unique Features

Superb Productivity

  • PCIe Gen5 (Graphics, M.2)
  • Dual Channel DDR5

Rock-Solid Durability

  • 14+2+1 Power Phase, 80A Dr.MOS for VCore+SOC+MISC

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
Bundled Software

Software

  • ASRock Motherboard Utility (A-Tuning)
  • ASRock Dragon 2.5G LAN Software
  • ASRock Polychrome SYNC
    • These utilities can be downloaded from ASRock Live Update & APP Shop

UEFI

  • ASRock EZ Mode
  • ASRock Full HD UEFI
  • ASRock Auto Driver Installer
  • ASRock Instant Flash
Operating System

Support for Windows 11 64-bit

Form Factor

ATX Form Factor

  • 30.5cm x 24.4cm

Manufacturer
Manufacturer's WebsiteLink *
Product WebsiteLink *
Warranty Information
Warranty Duration3 Years
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ASRock B850 PRO-A WiFi, AMD B850 Chipset, Socket AM5, ATX Desktop Motherboard

- Socket Socket AM5, AMD B850 Chipset
- Supports Ryzen 7000 / 8000 / 9000 Series Processors
- 4 x DDR5 DIMM Slots, up to 256GB, DDR5-8000+
- 1 x PCIe 5.0 x16 Slot
-
1 x PCIe 4.0 x16 Slot (x4 Electrical)
- 1 x M.2 PCIe 5.0 NVMe Slot
- 2 x M.2 PCIe 4.0 NVMe Slots
- 1 x M.2 PCIe 3.0 NVMe Slot

- 4 x SATA 3.0 Ports, Supports RAID 0 / 1
- 2.5Gbps LAN, Wi-Fi 6E & Bluetooth 5.2
- 1 x HDMI 2.1, 1 x Type-C DisplayPort 1.4

- 1 x Rear USB Type-C 10Gb/s, 1 x USB Type-C 5Gb/s
- 6 x USB Type-A 5Gb/s
- 4 x Rear USB 2.0/1.1 Ports
- 3 x Rear Audio Jacks
- BIOS Flashback - Update BIOS without CPU / RAM / GPU
- ASRock POST Status Checker

- 3 x ARGB Gen2 Headers
- Form Factor: ATX
- 3 Year Warranty

  • Product Code: 90-MXBQM0-A0UAYZ
  • Availability: In Stock with Supplier leadtimeTooltip Lead Times:
    • In Stock with Progenix: Ready for collection/dispatch once payment clears. The cut-off for same-day dispatch is 12:00pm on business days.
    • In Stock with Supplier: 1-3 business days until dispatched or ready for collection
    • Out Of Stock: Contact us to see if this item will be restocked.
  • R3,318



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