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ASUS ROG STRIX B850-A GAMING WIFI AMD AM5 B850 ATX motherboard 14+2+2 power stages, DDR5 AEMP, 2.5G LAN, WiFi 7 with Q-Antenna, 4x M.2, PCIe 5.0, USB 20Gbps Type-C, AI Networking II, ASUS AI Advisor
- Ready for Advanced AI PCs: Designed for the future of AI computing, with the power and connectivity needed for demanding AI applications
- AMD AM5 Socket: Ready for AMD Ryzen 9000, 8000 and 7000 series desktop processors
- Intelligent Control: ASUS AI Advisor, AI Networking II and AEMP to simplify setup and improve performance
- Robust Power Solution: 14+2+2 power solution rated for 80A per stage with an 8+8-pin ProCool power connector, high-quality alloy chokes, and durable capacitors to support multi-core processors
- Optimized Thermal Design: Massive heatsinks bridged to the VRMs with high-conductivity thermal pads and an integrated I/O cover
- Latest M.2 Support: One onboard PCIe 5.0 M.2 slot and three PCIe 4.0 M.2 slots, all with substantial cooling solutions
- Abundant Connectivity: USB 20Gbps Type-C, USB 10Gbps Type-C, USB 10Gbps Type-C front-panel connector, six additional USB 5Gbps ports, PCIe 5.0 x16 SafeSlots, HDMI port and DisplayPort port
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Overview
Specs
Reviews (24)
ROG STRIX B850-A GAMING WIFI
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 3 years
- Limited Warranty period (labor): 3 years
- Read full details
Return Policies
- Return for refund until: January 31, 2027
- Return for replacement until: January 31, 2027
- This item is covered by Newegg.ca's Extended Holiday Return Policy.
- Read full return policy for details.
We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-510-739-3777
- Support Website
- View other products from ASUS
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The ASUS ROG STRIX B850-A GAMING WIFI is an ATX AM5 motherboard for Ryzen 7000, 8000, and 9000 desktop processors, suited to high-performance gaming and enthusiast builds that need Wi-Fi 7, 2.5Gb Ethernet, DDR5, and four M.2 slots.
Recommended For
- Builders putting together a white or silver ATX gaming PC who want the motherboard, PCB, and heatsinks to fit a coordinated build theme.
- AM5 PC builders choosing a Ryzen 7000, 8000, or 9000 desktop processor who want one PCIe 5.0 graphics-card slot, a PCIe 5.0 M.2 slot with Ryzen 7000 or 9000, and room for multiple M.2 drives.
- DIY builders who expect to install or swap a graphics card and M.2 SSDs and value tool-light installation features such as Q-Release Slim, M.2 Q-Latch, and the Q-Dashboard.
- Gaming or home-work PC builders who want Wi-Fi 7 as well as 2.5Gb Ethernet, rather than relying on a separate networking card or adapter.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | AM5 desktop PC builds using Ryzen 7000, 8000, or 9000 Series processors, with DDR5 memory and multiple M.2 storage drives |
| Processor And Chipset | AMD AM5 socket with B850 chipset; supports Ryzen 7000, 8000, and 9000 Series desktop processors |
| Memory Configuration | Four DDR5 DIMM slots, up to 192GB and DDR5 8000+ MT/s (OC); dual-channel, AMD EXPO and ASUS AEMP support, ECC support, unbuffered memory |
| Expansion Slots | One PCIe x16 slot with Q-Release Slim: PCIe 5.0 x16 with Ryzen 7000/9000, or PCIe 5.0 slot operating at up to PCIe 4.0 x8 or x4 with Ryzen 8000; one chipset PCIe 4.0 x16 slot operating at x4 and sharing bandwidth with M.2_3 |
| Storage And RAID | Four M.2 sockets and two SATA 6Gb/s ports. M.2_1 supports 2242/2260/2280 drives and runs at PCIe 5.0 x4 with Ryzen 7000/9000 or PCIe 4.0 x4 with Ryzen 8000; M.2_2 supports 2280/22110 and PCIe 4.0 x4, or x4/x2 with Ryzen 8000. M.2_3 and M.2_4 support PCIe 4.0 x4; M.2_3 is disabled when PCIEX16(G4) is in use. SATA RAID 0/1/5/10 |
| Networking | Wi-Fi 802.11be, Bluetooth 5.4, and Intel 2.5Gb Ethernet |
| USB And Display Connectivity | 17 USB ports across rear I/O and onboard headers: rear 20Gbps Type-C, two 10Gbps Type-A and one 10Gbps Type-C, four 5Gbps Type-A, and two USB 2.0 Type-A; onboard headers add one 10Gbps Type-C, two 5Gbps ports, and four USB 2.0 ports. Rear video outputs include one HDMI and one DisplayPort |
| Audio | Realtek ALC4080 ROG SupremeFX 7.1-channel audio with Savitech SV3H712 amplifier, optical S/PDIF output, headphone impedance sensing, and up to 32-bit/384 kHz front-panel playback |
| Power And Cooling | 24-pin main power and dual 8-pin CPU power connectors; fan headers include CPU, CPU OPT, AIO pump, and four chassis fan connections |
| Board Format And Dimensions | ATX motherboard measuring 12.0 × 9.6 inches |
| Onboard Features And Firmware | 256Mb Flash ROM with UEFI AMI BIOS; BIOS FlashBack and Clear CMOS buttons, Thunderbolt (USB4) header, Q-Design features, and Windows 11 support |
| Model Identifiers | ASUS ROG STRIX B850-A GAMING WIFI; part number 90MB1J50-M0AAY0 |