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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

  • ProcessorRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
  • ChipsetAMD X870
  • Form factorATX
  • CPU socketAM5
  • Memory slot count4 × 288pin (DDR5)
  • Supported memoryDDR5 8000+(OC)

Model X870 STEEL LEGEND WIFI

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.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $187.99
Cheaper than about 55% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameASRock
Model nameX870 STEEL LEGEND WIFI
Processor
ProcessorRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
CPU socketAM5
ChipsetAMD X870
Memory
Memory slot count4 × 288pin (DDR5)
Supported memoryDDR5 8000+(OC)
Max supported RAM256 GB
Memory channelsDual Channel
Memory profilesAMD EXPO / Intel XMP 3.0
ECC supportYes
BufferingUn-buffered
Storage
SATA ports4 x SATA 6Gb/s
Audio & video
Audio chipRealtek ALC4082
Sound channels7.1 Channels
Connectivity
Maximum network speed2.5 Gbit/s
Wi-Fi standardWi-Fi 802.11 be
Bluetooth support5.4
Ports & slots
PCIe 5.0 x16 slots1 x PCIe 5.0 x16 Slot (PCIE1), supports x16 mode*
PCIe 4.0 x16 slots1 x PCIe 4.0 x16 Slot (PCIE2), supports x4 mode*
Onboard USB headers2 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 Gen2 × 2 Header (20 Gb/s)
Power
Power connectors1 × 24 pin ATX Power Connector (Hi-Density Power Connector)
2 × 8 pin 12 V Power Connectors (Hi-Density Power Connector)
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
Shipping weight2.02 kg
Package size343 × 279 × 76 mm
Compatibility
Windows 11 supportWindows 10 64-bit / 11 64-bit
In the box
In the box2 x SATA Data Cables
2 x ASRock WiFi 2.4/5/6 GHz Antennas
1 x Thermistor Cable
More details
BIOS256Mb AMI UEFI Legal BIOS with GUI support

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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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