Overview
The ASUS TUF GAMING B850-PLUS WIFI is an ATX motherboard designed for gaming desktops and performance-oriented PC builds using compatible AMD Ryzen processors. It features the AMD B850 chipset and AM5 socket, supporting selected Ryzen 7000, 8000, and 9000 Series desktop processors.
The board supports four DDR5 memory modules with a maximum listed capacity of 256GB, a PCIe 5.0 x16 graphics slot with supported Ryzen 7000 and 9000 processors, and three M.2 sockets for NVMe storage. Networking includes Wi-Fi 7 and Realtek 2.5Gb Ethernet. Rear USB connectivity includes a 20Gbps USB Type-C port, three 10Gbps USB Type-A ports, and four 5Gbps USB Type-A ports.
Additional features include VRM and M.2 heatsinks, BIOS FlashBack, Q-LED diagnostics, Aura Sync addressable RGB headers, and a pre-mounted I/O shield. CPU-dependent PCIe lane allocation, M.2 operating modes, and memory speeds should be verified before finalizing a system configuration.
Key Features
Supports AMD Ryzen 7000, 8000 and 9000 Series processors
Four DDR5 DIMM slots support up to 256GB of memory
PCIe 5.0 x16 graphics support with compatible Ryzen CPUs
Three M.2 sockets and four SATA 6Gb/s storage ports
Wi-Fi 7, 2.5Gb Ethernet and 20Gbps USB Type-C
Technical Specifications
| Specification | Details |
|---|
| Brand | ASUS |
| Part Number | TUF GAMING B850-PLUS WIFI |
| Product Type | ATX Gaming Motherboard |
| Chipset | AMD B850 |
| CPU Socket | AMD AM5 |
| Processor Compatibility | Selected AMD Ryzen 7000, 8000 and 9000 Series desktop processors |
| Memory Type | DDR5 |
| Memory Slots | 4 × DIMM, dual-channel |
| Maximum Memory | Up to 256GB |
| Memory Speed | Up to DDR5-8000+ MT/s (OC); CPU and memory configuration dependent |
| Primary Graphics Slot | 1 × PCIe 5.0 x16 with Ryzen 7000/9000; PCIe 4.0 x16 with Ryzen 8000, operating at supported x8/x4 modes |
| Additional Expansion Slots | 1 × PCIe 4.0 x16 (x4 mode); 2 × PCIe 4.0 x1 |
| M.2 Storage | 3 × M.2; PCIe 5.0 x4 and PCIe 4.0 x4 modes depend on CPU and socket |
| SATA Storage | 4 × SATA 6Gb/s |
| RAID Support | Ryzen 9000: RAID 0/1/5/10; Ryzen 8000: RAID 0/1; Ryzen 7000: RAID 0/1/10 |
| Wireless Connectivity | Wi-Fi 7, 2×2, 2.4GHz/5GHz/6GHz |
| Bluetooth | Version 5.4 listed; may vary by wireless module |
| Ethernet | Realtek 2.5Gb Ethernet |
| Rear USB Ports | 1 × USB 20Gbps Type-C, 3 × USB 10Gbps Type-A, 4 × USB 5Gbps Type-A, 2 × USB 2.0 Type-A |
| Front USB Expansion | 1 × USB 10Gbps Type-C header, 1 × USB 5Gbps header for 2 ports, 2 × USB 2.0 headers for 4 ports |
| Display Outputs | 1 × DisplayPort 1.4, 1 × HDMI 2.1; require a processor with integrated graphics |
| Audio | Realtek ALC1220P 7.1-channel HD audio |
| Power Connectors | 1 × 24-pin motherboard power, 2 × 8-pin CPU power |
| BIOS Features | UEFI BIOS, BIOS FlashBack |
| Form Factor | ATX, 30.5 × 24.4 cm |
| Operating System | Windows 11 |
Product Note
This motherboard requires an AMD AM5 processor and DDR5 memory. It is not compatible with Intel processors or DDR4 DIMMs. Verify the exact CPU against ASUS’s support list and confirm any BIOS requirements before purchase.
PCIe and M.2 capabilities vary by processor generation. With supported Ryzen 7000 and 9000 Series processors, the primary graphics slot supports PCIe 5.0 x16 and the first M.2 socket supports PCIe 5.0 x4. Ryzen 8000 Series processors can use reduced PCIe lane configurations, and some M.2 sockets may operate at reduced speeds.
The secondary PCIe 4.0 x16 slot shares bandwidth with the third M.2 socket. When M.2_3 is populated and operating, the secondary PCIe slot is disabled. Wi-Fi 7 functionality depends on operating-system version and local 6GHz regulations; ASUS specifies Windows 11 version 24H2 or later for full Wi-Fi 7 functionality.
Frequently Asked Questions
Q1: Which processors are compatible with the ASUS TUF GAMING B850-PLUS WIFI?
It supports selected AMD Ryzen 7000, 8000, and 9000 Series desktop processors using the AM5 socket. Check ASUS’s CPU support list for the exact processor and any BIOS requirements.
Q2: Does this motherboard support DDR4 memory?
No. It supports DDR5 memory only, with four DIMM slots and a maximum listed capacity of 256GB.
Q3: How many M.2 SSDs can be installed?
The motherboard provides three M.2 sockets and four SATA 6Gb/s ports. PCIe operating modes depend on the processor, and using the third M.2 socket disables the secondary PCIe 4.0 x16 expansion slot.
Q4: Does the motherboard include Wi-Fi and wired networking?
Yes. It includes Wi-Fi 7 and Realtek 2.5Gb Ethernet. Full Wi-Fi 7 functionality requires a compatible operating system, and 6GHz availability depends on regional regulations.
Q5: Can the motherboard output video without a dedicated graphics card?
The HDMI 2.1 and DisplayPort 1.4 outputs can be used when the installed processor includes integrated graphics. A processor without integrated graphics requires a separate graphics card for display output.
Q6: Is this motherboard suitable for high-speed gaming and storage builds?
Yes. It supports PCIe 5.0 graphics and a PCIe 5.0 x4 M.2 SSD with compatible Ryzen processors, along with DDR5 memory and 2.5Gb Ethernet. Actual performance depends on the CPU, memory kit, storage devices, graphics card, and cooling configuration.
