ASROCK ATX motherboard X870 STEEL LEGEND-WIFI AM5 DSP0000042377

ASRock X870 Steel Legend WiFi features
The ASRock X870 Steel Legend WiFi is an ATX motherboard with an AMD X870 chipset, designed for high-performance systems based on AMD Ryzen™ processors for the AM5 socket. The Steel Legend family combines durability, refined aesthetics and components designed for demanding builds, incorporating technologies such as PCIe 5.0, DDR5 memory, Wi-Fi 7, 2.5 GbE LAN and USB4.
AMD X870 platform with socket AM5
Equipped with the AMD X870 chipset and AM5 socket, this motherboard offers compatibility with AMD Ryzen™ processors from the 9000, 8000 and 7000 series. Its 14+2+1-phase power design with 80 A Dr.MOS for VCore+SOC and a larger heatsink cover help provide stable power delivery.

Chipset AMD X870
Socket AMD AM5
Compatible with AMD Ryzen™ 9000, 8000 and 7000
14+2+1-phase power design
80 A Dr.MOS for VCore+SOC
20K long-life black conductive polymer capacitors
Integrated flexible I/O panel

DDR5 memory up to 256 GB
The X870 Steel Legend WiFi features four DDR5 DIMM slots in a Dual Channel configuration and supports a total capacity of up to 256 GB. It is compatible with DDR5 ECC and non-ECC unbuffered memory up to 8000+ MHz via overclocking, as well as XMP and AMD EXPO profiles for easy configuration of compatible memory.

DDR5 Dual Channel memory architecture
4 slots DIMM DDR5
Maximum capacity of 256 GB
DDR5 ECC and non-ECC unbuffered up to 8000+ (OC)
Compatible with Extreme Memory Profile (XMP)
Compatible with AMD Extended Profiles for Overclocking (EXPO)

PCIe 5.0 for next-generation graphics
Its primary slot provides PCIe 5.0 x16 connectivity with compatible processors, offering a platform ready for high-performance graphics cards. It also features a second PCIe 4.0 x16 slot operating at x4 and 15 µ gold contacts in the primary VGA slot.

1 PCIe 5.0 x16 slot PCIE1 operating at up to x16
1 PCIe 4.0 x16 slot PCIE2 operating at x4
PCIE1 operates in Gen5 x16 with Ryzen™ 9000 series and 7000
PCIE1 operates at Gen4 x8 with Ryzen™ 8000 Phoeni x 1
PCIE1 operates at Gen4 x4 with Ryzen™ 8000 Phoeni x 2
15 µ gold contacts PCIE1
AMD CrossFire™ compatible
1 vertical M.2 Key E socket for PCIe-type WiFi/BT modules 2230

M.2 PCIe 5.0 storage up to 128 Gb/s
For high-performance storage configurations, it integrates three NVMe M.2 sockets, including a CPU-connected Blazing M.2 capable of operating via PCIe Gen5 x4 at up to 128 Gb/s with compatible processors. These are complemented by four 6 Gb/s SATA3 connectors via the ASMedia ASM1061 controller.

1 Blazing M.2 M2_1 Key M, type 2280, PCIe Gen5 x4 up to 128 Gb/s
1 Hyper M.2 M2_2 Key M, type 2230/2260/2280, PCIe Gen4 x4 up to 64 Gb/s
1 Hyper M.2 M2_3 Key M, type 2260/2280, PCIe Gen4 x4 up to 64 Gb/s
4 SATA3 connectors at 6 Gb/s
Compatible with NVMe SSDs as boot drives
M2_1 operates at Gen5 x4 with Ryzen™ series 9000 and 7000, and Gen4 x4 with Ryzen™ 8000 Phoenix 1 and Phoeni x 2
M2_1 has priority for drive installation M.2
If M2_3 is occupied, PCIE2 is disabled
RAID 0, RAID 1 and RAID 10 for M.2 NVMe storage
RAID 10 requires additional M.2 NVMe expansion cards

Wi-Fi 7, Bluetooth 5.4 and 2.5 Gigabit LAN
Network connectivity combines Dragon 2.5 Gigabit Ethernet with Wi-Fi 7 802.11be 2x2, providing both wired and wireless options for gaming, streaming and everyday use. It also features Bluetooth 5.4, MU-MIMO and support for the 2.4, 5 and 6 GHz bands.

Dragon RTL8125BG 2.5 Gigabit LAN 10/100/1000/2500 Mb/s
Dragon software 2.5G LAN
Intelligent, automatic bandwidth control
Visual network usage statistics and custom priority control
Optimized profiles for gaming, browsing and streaming
Wi-Fi 7 802.11be 2x2
Compatible with IEEE 802.11a/b/g/n/ac/ax/axe/be
2.4 GHz, 5 GHz and 6 GHz bands
160 MHz channel bandwidth in the 6 GHz band
2x2 transmit and receive technology
MU-MIMO
Bluetooth 5.4
2 ASRock WiFi antennas for 2.4/5/6 GHz included

USB4 at 40 Gb/s and extensive USB connectivity
One of its standout features is USB connectivity, led by two rear USB4 Type-C ports supporting up to 40 Gb/s. It also offers front USB 3.2 Gen2x2 Type-C at 20 Gb/s, USB 3.2 Gen2, USB 3.2 Gen1 and USB 2.0, providing numerous connections for peripherals and external devices.

2 rear USB4 Type-C ports up to 40 Gb/s
1 front USB 3.2 Gen2x2 Type-C up to 20 Gb/s
2 rear USB 3.2 Gen2 Type-A via CPU and chipset
6 USB 3.2 Gen1 Type-A, 2 rear and 4 front
8 USB 2.0, 4 rear and 4 front
ESD protection on all USB ports
USB4 compatible with USB PD 3.0 charging up to 5 V @ 3 A, 15 W
ASRock Lightning Gaming Ports
USB ports compatible with ASRock Ultra USB Power

Integrated graphics with HDMI 2.1 and output via USB4
When a processor with compatible integrated AMD RDNA™ graphics is installed, the motherboard supports HDMI 2.1 at resolutions up to 4K at 120 Hz. The two USB4 ports can also provide video output up to 8K at 30 Hz using the integrated graphics of a compatible CPU.

Integrated AMD RDNA™ graphics, depending on CPU
1 HDMI 2.1 TMDS/FRL compatible with 8G
Maximum HDMI resolution of up to 4K at 120 Hz
Compatible with HDR and HDCP 2.3
2 USB4 with output up to 8K at 30 Hz and HDCP 2.3
USB4 video output uses only the CPU’s integrated graphics

7.1 HD Audio with Realtek ALC4082 and Nahimic
The audio section is based on the Realtek ALC4082 codec with 7.1-channel HD audio and content protection. It features independent PCB layers for the left and right audio channels, direct-drive headphone technology and Nahimic Audio.

7.1-channel HD audio
Realtek codec ALC4082
Independent PCB layers for the left and right channels
Direct drive on the front headphone port
Supports headphones up to 600 ohms
Nahimic Audio
Rear SPDIF optical output
Gold-plated audio connectors for line output and microphone input

Internal connectors for cooling and lighting
The motherboard offers a wide range of internal connections for configuring fans, AIO liquid cooling and RGB lighting. Smart Fan connectors let you control fan speed and automatically detect 3- or 4-pin fans on compatible connectors.

2 4-pin CPU fan connectors with Smart Fan
3 4-pin case fan connectors with Smart Fan
1 4-pin AIO Pump connector with Smart Fan
CPU_FAN1 supports up to 1 A / 12 W
CPU_FAN2, CHA_FAN1~3 and AIO_PUMP support up to 3 A / 36 W
Automatic detection of 3- or 4-pin fans on CPU_FAN2, CHA_FAN1~3 and AIO_PUMP
1 RGB LED header up to 12 V / 3 A and 36 W
3 addressable LED headers up to 5 V / 3 A and 15 W
1 thermistor cable connector
1 SPI TPM header
1 power LED and speaker header
1 front panel audio connector

Power and front panel connections
To make it easier to build a complete system, it features high-density power connectors and internal headers to expand the USB connections available on the front of the case.

1 high-density 24-pin ATX power connector
2 high-density 8-pin 12 V power connectors
2 USB 2.0 headers for up to 4 ports
2 USB 3.2 Gen1 headers for up to 4 ports
1 front USB Type-C USB 3.2 Gen2x2 20 Gb/s header

Full rear panel and BIOS Flashback
The integrated rear panel brings together essential connections and makes both everyday use and system maintenance easier. It includes BIOS Flashback, USB4, HDMI, 2.5 GbE Ethernet, WiFi and audio connections, as well as additional USB ports.

2 antenna connections
1 HDMI port
1 SPDIF optical output
2 USB4 Type-C 40 Gb/s
3 USB 3.2 Gen1 Type-A
2 USB 3.2 Gen2 Type-A at 10 Gb/s
4 USB 2.0
1 RJ-45 2.5 GbE
1 BIOS Flashback switch
1 line-out with gold-plated audio jack
1 microphone input with gold-plated audio jack

EZ features for setup and diagnostics
ASRock includes tools designed to simplify system setup, updating and diagnostics. These include BIOS Flashback, the automatic driver installer and ASRock Post Status Checker to help identify potential issues during startup.

BIOS Flashback
ASRock Auto Driver Installer
ASRock Post Status Checker
256 Mb AMI UEFI Legal BIOS with graphical interface
ASRock EZ Mode
ASRock Full HD UEFI
ASRock Instant Flash

ASRock software and Polychrome SYNC
The motherboard is compatible with various ASRock tools for managing and customising the system, including A-Tuning, Dragon 2.5G LAN and Polychrome SYNC. The latter lets you manage compatible lighting systems connected to the motherboard.

ASRock Motherboard Utility A-Tuning
ASRock Dragon 2.5G LAN Software
ASRock Polychrome Sync
Polychrome SYNC available via ASRock Live Update & APP Shop

ATX form factor with 8-layer PCB
The X870 Steel Legend WiFi uses an ATX form factor measuring 30.5 x 24.4 cm and an 8-layer PCB, a configuration designed for desktop systems requiring extensive expansion, storage and connectivity options.

ATX form factor
Dimensions of 12.0 x 9.6 inches
Dimensions: 30.5 x 24.4 cm
8-layer PCB

Accessories, operating system and certifications
The package includes the accessories needed to make use of its SATA, WiFi and thermal monitoring connections. The motherboard offers compatibility with 64-bit Microsoft Windows® 10 and Windows® 11, noting that Wi-Fi 7 features are supported exclusively by Windows® 11.

2 SATA data cables included
2 ASRock 2.4/5/6 GHz WiFi antennas
1 thermistor cable
Compatible with 64-bit Microsoft Windows® 10
Compatible with 64-bit Microsoft Windows® 11
The Wi-Fi 7 module requires Windows® 11, and its availability depends on the regulations in each country or region
FCC and CE certifications
ErP/EuP certified with a compatible power supply
Volume (m ³): 0.0091