ASRock B850 Steel Legend WiFi AMD Ryzen AM5 DDR5 ATX Motherboard - 90-MXBQS-A0UAYZ

Detail Specication Detail Specication

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

* Please refer to Memory Support List on ASRock's website for more information.

(http://www.asrock.com/)

Memory

CPU:

- 1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode*

Chipset:

- 1 x PCIe 4.0 x16 Slot (PCIE2), supports x4 mode*

- 1 x Vertical 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_4 is occupied, PCIE2 will be disabled.

* Supports NVMe SSD as boot disks

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

Expansion Slot

Integrated AMD RDNATM 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

Graphics

7.1 CH HD Audio with Content Protection (Realtek ALC4082 Audio Codec)

- Individual PCB Layers for R/L Audio Channel

- Direct Drive Technology on Front headphone port (Supports up to 600 Ohm

headsets)

- Nahimic Audio

Audio

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

LAN

802.11be 2x2 Wi-Fi 7 Module

- Supports IEEE 802.11a/b/g/n/ac/ax/axe/be

- Supports 2.4GHz/5GHz/6GHz* frequency band

- Supports 160MHz channel bandwidth with 6GHz* frequency band

* Wi-Fi 7 (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.

- 1 antenna to support 2 (Transmit) x 2 (Receive) diversity technology

- Supports Bluetooth 5.4

- Supports MU-MIMO

Wireless LAN

CPU:

- 2 x USB 3.2 Gen2 Type-C (Rear)

- 1 x USB 3.2 Gen2 Type-A (Rear (USB32_3))

- 1 x USB 3.2 Gen1 Type-A (Rear (USB32_1))

Chipset:

- 1 x USB 3.2 Gen2x2 Type-C (Front)

- 1 x USB 3.2 Gen2 Type-A (Rear (USB32_4))

- 6 x USB 3.2 Gen1 Type-A (2 Rear (USB32_2 and USB32_5), 4 Front)

- 8 x USB 2.0 (4 Rear, 4 Front)

* All USB ports support ESD Protection

USB

2 x Antenna Ports

- 1 x HDMI Port

- 1 x Optical SPDIF Out Port

- 2 x USB 3.2 Gen2 Type-C Ports (10 Gb/s)

- 3 x USB 3.2 Gen1 Type-A Ports*

- 2 x USB 3.2 Gen2 Type-A Ports (10 Gb/s)**

- 4 x USB 2.0 Ports

- 1 x RJ-45 LAN Port

- 1 x BIOS Flashback Button

- 1 x Line Out Jack (Gold Audio Jack)

- 1 x Microphone Input Jack (Gold Audio Jack)

* USB32_12 are Lightning Gaming Ports.

** USB32_34 supports Ultra USB Power.

Rear Panel I/O

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_2, Key M), supports type 2260/2280 PCIe Gen4x4 (64 Gb/s) mode*

Chipset:

- 1 x Hyper M.2 Socket (M2_3, Key M), supports type 2230/2260/2280 PCIe Gen4x4 (64 Gb/s)

mode*

- 1 x Hyper M.2 Socket (M2_4, Key M), supports type 2260/2280 PCIe Gen4x4 (64 Gb/s) mode*

ASMedia ASM1061:

- 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_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.

* If M2_4 is occupied, PCIE2 will be disabled.

Storage

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

1 x SPI TPM Header

- 1 x Thermistor Cable 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 AIO Pump Fan Connector (4-pin) (Smart Fan Speed Control)***

- 1 x 24 pin ATX Power Connector (Hi-Density 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 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 Gen2x2 Header (20 Gb/s)

* 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, CHA_FAN1~3 and AIO_PUMP support the fan power up to 3A (36W).

*** CPU_FAN2, CHA_FAN1~3 and AIO_PUMP can auto detect if 3-pin or 4-pin fan is in use.

Connector

BIOS Feature - 256Mb AMI UEFI Legal BIOS with GUI support

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

Software and UEFI

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

FCC, CE

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

Certifications

2 x SATA Data Cables

- 2 x ASRock WiFi 2.4/5/6 GHz Antennas

- 1 x Thermistor Cable