Pristine condition never used open box.  Professionally tested to ensure 100% functionality.  Bios updated to latest.

Learn more about ASRock B850M STEEL LEGEND WIFI

Model

Brand

ASRock

Model

B850M STEEL LEGEND WIFI

Supported CPU

CPU Socket Type

AM5

CPU Type

Ryzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series

Chipsets

Chipset

AMD B850

Memory

Number of Memory Slots

4x288pin (DDR5)

Memory Standard

Up to 8000+(OC)

Maximum Memory Supported

256GB

Channel Supported

Dual Channel

ECC Supported

Yes

Buffer Supported

Un-buffered

Expansion Slots

PCI Express 5.0 x16

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.
* Supports NVMe SSD as boot disks
– 15µ Gold Contact in VGA PCIe Slot (PCIE1)

PCI Express 4.0 x16

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

Storage Devices

SATA 6Gb/s

4 x SATA 6Gb/s

M.2

CPU:
– 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2280 PCIe Gen5x4 (128 Gb/s) mode*
Chipset:
– 1 x M.2 Socket (M2_2, Key M), supports type 2260/2280 PCIe Gen4x2 (32 Gb/s) mode*
– 1 x Hyper M.2 Socket (M2_3, Key M), supports type 2260/2280 PCIe Gen4x4 (64 Gb/s) mode*

* 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.

SATA 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

Onboard Audio

Audio Chipset

Realtek ALC1220

Audio Channels

7.1 Channels

Onboard LAN

LAN Chipset

Dragon RTL8125BG

Max LAN Speed

2.5Gbps

Wireless LAN

Wi-Fi 802.11 be

Bluetooth

Bluetooth 5.4

Rear Panel Ports

Back I/O Ports

2 x Antenna Ports
1 x HDMI Port
1 x DisplayPort 1.4
1 x USB 3.2 Gen2 Type-C Port (10 Gb/s)
1 x USB 3.2 Gen2 Type-A Port (10 Gb/s)
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
* USB32_23 are Lightning Gaming Ports

Internal I/O Connectors

Onboard USB

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

Other Connectors

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 Front Panel Audio Connector
* 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.

Physical Spec

Form Factor

Micro ATX

Dimensions (W x L)

9.6″ x 9.6″

Power Pin

1 x 24 pin ATX Power Connector (Hi-Density Power Connector)
1 x 8 pin 12V Power Connector (Hi-Density Power Connector)
1 x 4 pin 12V Power Connector (Hi-Density Power Connector)

Software Feature

BIOS Feature

256Mb AMI UEFI Legal BIOS with GUI support

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

Windows 11

Windows OS 10 64-bit / 11 64-bit

Features

Features

Superb Productivity
– PCIe Gen5 (Graphics, M.2)
– Dual Channel DDR5
Rock-Solid Durability
– 12+2+1 Power Phase, Dr.MOS for VCore+SOC+MISC with Enlarged Heatsink
Armor
– Flexible Integrated I/O Shield
– 20K Long-lasting Black Caps (high quality and conductive polymer capacitors)
Ultrafast Connectivity
– 2.5G LAN, 802.11be Wi-Fi 7 Module
EZ Update
– BIOS Flashback Button
– ASRock Auto Driver Installer
EZ Troubleshooter
– ASRock Post Status Checker

Packaging

Package Contents

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