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ATX motherboard with silver and grey heatsinks, four DDR5 slots, one PCIe 5.0 x16 slot and rear USB4 Type-C ports

ASRock

ASRock X870 Steel Legend WiFi AMD motherboard AM5 256GB DDR5 8000 OC

SKU CH-4Q17-GBHAT MPN X870 Steel Legend WiFi

ATX board for AM5 Ryzen 7000, 8000 and 9000 CPUs with 14+2+1 80A power phases, four DDR5 slots up to 256GB at 8000+ OC, one PCIe 5.0 x16, one PCIe 4.0 x16, one Gen5 M.2, two Gen4 M.2, four SATA

  • CPU Socket TypeAM5
  • CPU TypeRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
  • ChipsetAMD X870
  • Number of Memory Slots4x288pin (DDR5)
  • Memory StandardDDR5 8000+(OC)
  • Maximum Memory Supported256GB

Option X870 STEEL LEGEND WIFI

Struck-through versions exist but are not stocked here.

Style White

  • Supports Ryzen 7000, 8000 and 9000 series CPUs on AM5 socket
  • 14+2+1 phase power design with 80A Dr.MOS for stable overclocking
  • Four DDR5 slots up to 256GB at 8000+(OC) with EXPO and XMP 3.0
  • One PCIe 5.0 x16 and one PCIe 4.0 x16 for graphics and expansion
  • Realtek ALC4082 7.1-channel audio with Nahimic enhancement

AM5 X870 ATX Motherboard for Ryzen 7000, 8000, 9000

The ASRock X870 Steel Legend WiFi is an ATX motherboard built for AMD AM5 processors across the Ryzen 7000, 8000 and 9000 series. It runs the X870 chipset with a 14+2+1 phase power design using 80A Dr.MOS and upgraded 20K capacitors rated at 1000uF. Four DDR5 slots support up to 256GB in dual-channel at 8000+ OC via AMD EXPO or Intel XMP 3.0 profiles.

Daily Users and Mainstream Enthusiasts Wanting

This board suits builders who need one PCIe 5.0 x16 slot, one PCIe 4.0 x16 slot running at x4, a Blazing M.2 Gen5x4 drive and two Hyper M.2 Gen4x4 slots alongside four SATA 6Gb/s ports. Users relying on the second PCIe x16 slot at full bandwidth should look elsewhere because it is disabled when the third M.2 socket is populated. The primary x16 link also drops to Gen4x8 with Ryzen 8000 Phoenix 1 and Gen4x4 with Phoenix 2 CPUs.

Straightforward ATX Install with Clear M.2 and USB

Installation follows standard ATX mounting and 24-pin plus 8-pin CPU power connections. The four 288-pin DDR5 slots accept unbuffered ECC or non-ECC modules. M.2 screws are required for 2230, 2260 and 2280 form factors. Front-panel headers include one USB 3.2 Gen2x2 Type-C, seven USB 3.2 Gen1 and four USB 2.0 ports; rear I/O adds two USB4 Type-C, two USB 3.2 Gen2 Type-A, 2.5Gbps LAN and 7.1-channel audio.

Highlights

  • Supports Ryzen 7000, 8000 and 9000 series CPUs on AM5 socket
  • 14+2+1 phase power design with 80A Dr.MOS for stable overclocking
  • Four DDR5 slots up to 256GB at 8000+(OC) with EXPO and XMP 3.0
  • One PCIe 5.0 x16 and one PCIe 4.0 x16 for graphics and expansion
  • Realtek ALC4082 7.1-channel audio with Nahimic enhancement

Specifications

BrandASRock
ModelX870 STEEL LEGEND WIFI
CPU Socket TypeAM5
CPU TypeRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
ChipsetAMD X870
Number of Memory Slots4x288pin (DDR5)
Memory StandardDDR5 8000+(OC)
Maximum Memory Supported256GB
Channel SupportedDual Channel
Memory Performance ProfileAMD EXPO / Intel XMP 3.0
ECC SupportedYes
Buffer SupportedUn-buffered
PCI Express 5.0 x161 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode*
PCI Express 4.0 x161 x PCIe 4.0 x16 Slot (PCIE2), supports x4 mode*
Other Slots* 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
- Supports AMD CrossFire
- 15µ Gold Contact in VGA PCIe Slot (PCIE1)
Serial ATA (SATA)4 x SATA 6Gb/s
M.2CPU:
- 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 2230/2260/2280 PCIe Gen4x4 (64 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.
* If M2_3 is occupied, PCIE2 will be disabled.
Audio ChipsetRealtek ALC4082
Audio Channels7.1 Channels
Max LAN Speed2.5Gbps
Wireless LANWi-Fi 802.11 be
BluetoothBluetooth 5.4
Back I/O Ports2 x Antenna Ports
1 x HDMI Port
1 x Optical SPDIF Out Port
2 x USB4 Type-C Ports (40 Gb/s)*
3 x USB 3.2 Gen1 Type-A Ports (USB32_12 are Lightning Gaming Ports.)
2 x USB 3.2 Gen2 Type-A Ports (10 Gb/s) (USB32_34 supports Ultra USB Power.)
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)
* Supports USB PD 3.0 up to 5V@3A (15W) charging
Onboard USB2 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)
Other Connectors1 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 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, CHA_FAN1~3 and AIO_PUMP support the fan power up to 3A (36W).
*** CPU_FAN2, CHA_FAN1~3 and AIO_PUM
Form FactorATX
Dimensions (W x L)12.0" x 9.6"
Power Pin1 x 24 pin ATX Power Connector (Hi-Density Power Connector)
2 x 8 pin 12V Power Connectors (Hi-Density Power Connector)
BIOS Feature256Mb AMI UEFI Legal BIOS with GUI support
SoftwareSoftware
- 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 11Windows 10 64-bit / 11 64-bit
FeaturesSuperb Productivity
- PCIe Gen5 (Graphics, M.2)
- Dual Channel DDR5
- USB4 Type-C Ports (40 Gb/s)
Rock-Solid Durability
- 14+2+1 Power Phase, 80A Dr.MOS for VCore+SOC 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
- ASRock Lightning Gaming Ports
EZ Update
- BIOS Flashback Button
- ASRock Auto Driver Installer
EZ Troubleshooter
- ASRock Post Status Checker
Package Contents2 x SATA Data Cables
2 x ASRock WiFi 2.4/5/6 GHz Antennas
1 x Thermistor Cable
Shipping weight2.02 kg
Package size343 × 279 × 76 mm

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Questions about this item

What DDR5 memory kit speed and capacity do I need installed to reach the board's 8000+(OC) rating with the 256GB limit?

Four DDR5 modules up to 256GB total running at 8000+(OC) via AMD EXPO or Intel XMP 3.0 profiles on the 288-pin slots.

Will my PCIe 4.0 graphics card run at full x16 bandwidth in the top slot with a Ryzen 7000 series CPU?

Yes, the primary PCIe 5.0 x16 slot operates at Gen4 x16 with Ryzen 7000 and 9000 series processors, while Ryzen 8000 Phoenix 1 runs at Gen4 x8 and Phoenix 2 at Gen4 x4.

How can I confirm the Realtek ALC4082 codec is delivering 7.1 channel audio after driver installation?

Open Windows Sound control panel, select the Realtek device, click Configure, choose 7.1 Surround and run the speaker test to hear all eight channels.

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