ASUS ROG Strix B850-A Gaming Wi-Fi ATX Motherboard AM5 DDR5 White

The ASUS ROG Strix B850-A Gaming Wi-Fi is an ATX motherboard for AMD Ryzen 9000, 8000, and 7000 Series processors on the AM5 platform. It features a white PCB, PCIe 5.0 support, four M.2 slots, Wi-Fi 7 with 160MHz bandwidth, Intel 2.5GbE LAN, and ROG SupremeFX ALC4080 audio, making it a practical choice for a clean, high-performance build.

UK-based seller
Tracked delivery across the UK
Genuine product sourced through established UK suppliers and distribution partners

Key Features

• Socket AM5 — compatible with AMD Ryzen 9000, 8000 and 7000 Series processors
• AMD B850 chipset
• ATX form factor, 305 x 244 mm, white PCB
• 4 x DDR5 DIMM slots, Dual Channel, ECC/Non-ECC, up to 256GB, DDR5-8000+ (OC); AMD EXPO and AEMP support
• 1 x PCIe 5.0 x16 (CPU), 1 x PCIe 4.0 x16 (x4 mode, Chipset) expansion slots
• 4 x M.2 slots: 1 x PCIe Gen5 x4 (CPU), 1 x PCIe Gen4 x4 (CPU), 2 x PCIe Gen4 x4 (Chipset)
• 2 x SATA 6Gb/s ports
• Intel 2.5GbE LAN with ASUS LANGuard
• Wi-Fi 7 (802.11be), 2.4/5/6GHz, 160MHz, up to 2.9Gbps, with Bluetooth 5.4
• ROG SupremeFX ALC4080 7.1 Surround Sound Audio

Product Overview

The ROG Strix B850-A Gaming Wi-Fi offers a solid feature set for AM5 builds in a white ATX form factor. Four M.2 slots, including one PCIe Gen5 x4 from the CPU, provide fast and flexible storage options. Wi-Fi 7 with 160MHz bandwidth and Intel 2.5GbE LAN cover both wireless and wired connectivity. The SupremeFX ALC4080 audio codec delivers clear 7.1 surround sound at up to 32-bit/384kHz, and the white PCB makes it a natural fit for light-themed builds. BIOS Flashback and Clear CMOS buttons on the rear panel simplify setup.

Delivery & Fulfilment

This product is sold by TechFinder UK, a UK-based sole trader business. All hardware is sourced through established UK suppliers and distribution partners. Customers can typically expect to receive their order within 3–5 business days from the date the order is placed, with free tracked delivery across the United Kingdom.

Why Buy from TechFinder UK?

• UK-based sole trader — genuine products, real accountability
• Sourced through established UK suppliers and distribution partners
• Secure checkout
• Free tracked UK delivery — typically 3–5 business days from the date the order is placed
• Pre- and post-purchase support available

Technical Specifications

• Socket: AM5
• Compatible Processors: AMD Ryzen 9000, 8000 and 7000 Series
• Chipset: AMD B850
• Form Factor: ATX
• Colour: White
• Dimensions: 305 x 244 mm
• Memory Type: DDR5, Dual Channel, ECC/Non-ECC, Unbuffered (UDIMM); AMD EXPO and AEMP support
• Memory Slots: 4 x 288-pin DIMM
• Max Memory: 256GB
• Memory Speed: Up to DDR5-8000+ (OC)
• PCIe Slots: 1 x PCIe 5.0 x16 (CPU), 1 x PCIe 4.0 x16 (x4 mode, Chipset, shares bandwidth with M.2_3)
• M.2 Slots: M.2_1 — PCIe Gen5 x4 (CPU, 2242/2260/2280); M.2_2 — PCIe Gen4 x4 (CPU, 2280/22110); M.2_3 — PCIe Gen4 x4 (Chipset, 2280, shares bandwidth with PCIe 4.0 slot); M.2_4 — PCIe Gen4 x4 (Chipset, 2280)
• SATA: 2 x SATA 6Gb/s
• RAID: Ryzen 9000 — 0, 1, 5, 10; Ryzen 8000 — 0, 1; Ryzen 7000 — 0, 1, 10
• LAN: Intel 2.5GbE (10/100/1000/2500 Mbps) with ASUS LANGuard
• Wireless: Wi-Fi 7 (802.11be), 2.4/5/6GHz, 160MHz, up to 2.9Gbps
• Bluetooth: 5.4
• Audio: ROG SupremeFX ALC4080, 7.1 Surround Sound, up to 32-bit/384kHz, S/PDIF-Out (Optical)
• Onboard Graphics Output: 1 x DisplayPort 1.4 (max 8K@30Hz); 1 x HDMI 2.1 (max 4K@60Hz) — requires CPU with integrated graphics
• Rear I/O: 2 x USB 2.0, 4 x USB 5Gbps Type-A, 2 x USB 10Gbps Type-A, 1 x USB 10Gbps Type-C, 1 x USB 20Gbps Type-C, 1 x DisplayPort, 1 x HDMI, 1 x RJ-45, 2 x Audio jacks, 1 x S/PDIF-Out (Optical), BIOS Flashback button, Clear CMOS button
• Internal Headers: 4 x USB 2.0 (via 2 headers), 2 x USB 5Gbps (via 1 header), 1 x USB 10Gbps Type-C connector, 1 x Thunderbolt (USB4) header, 3 x ARGB Gen2, 4 x Chassis Fan, 1 x CPU Fan, 1 x CPU OPT Fan, 1 x AIO Pump, 1 x Front Panel, 1 x Front Panel Audio, 1 x Thermal Sensor, 1 x CPU OV jumper, 1 x Power button
• Power Connectors: 1 x 24-pin ATX, 2 x 8-pin EPS
• BIOS: 256Mb Flash ROM, UEFI AMI BIOS
• Net Weight: 1.59 kg
• Gross Weight: 2.27 kg
• Package Dimensions: 35.3 x 27.3 x 6.8 cm
• Warranty: 3 Years ASUS Manufacturer Warranty
• Package Contents: Motherboard, 2 x SATA 6Gb/s cables, 1 x ASUS WiFi Q-Antenna, 1 x Cable ties package, 1 x M.2 Q-Latch package, 1 x M.2 Q-Slide package, 1 x ROG key chain, 1 x ROG Strix stickers, 4 x M.2 rubbers, 1 x Quick start guide

Product Identification

Model: ROG Strix B850-A Gaming Wi-Fi
MPN: 90MB1J50-M0EAY0
EAN: 4711387772676
UPC: 197105772670