Overview
The ASUS TUF GAMING B850M-PLUS WIFI is a micro-ATX motherboard designed for gaming desktops and performance-focused systems 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 provides four DDR5 DIMM slots supporting up to 256GB of memory, one PCIe 5.0 x16 graphics slot with supported Ryzen 7000 and 9000 Series CPUs, and three M.2 sockets for NVMe storage. Networking includes Wi-Fi 6E and Realtek 2.5Gb Ethernet. Rear USB connectivity includes a 20Gbps USB Type-C port, three 10Gbps USB Type-A ports, four 5Gbps USB Type-A ports, and four USB 2.0 Type-A ports.
Designed for compact gaming and general-purpose desktop builds, the motherboard also features 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, storage modes, and memory speeds should be checked 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 6E, 2.5Gb Ethernet and 20Gbps USB Type-C
Technical Specifications
| Specification | Details |
|---|
| Brand | ASUS |
| Part Number | TUF GAMING B850M-PLUS WIFI |
| Product Type | Micro-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, ECC and non-ECC unbuffered DIMMs |
| 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 operating at supported x8/x4 modes with Ryzen 8000 |
| Additional Expansion Slots | 1 × PCIe 4.0 x1 |
| M.2 Storage | 3 × M.2: one PCIe 5.0 x4 and two PCIe 4.0 x4, with CPU-dependent configurations |
| 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 6E, 2×2, 2.4GHz/5GHz/6GHz |
| Bluetooth | Version 5.3 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, 4 × 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 additional 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, Q-LED diagnostics |
| Form Factor | Micro-ATX, 24.4 × 24.4 cm |
| Operating System Support | Windows 11 and Windows 10 64-bit listed by ASUS |
Product Note
This motherboard requires an AMD AM5 processor and DDR5 memory. It is not compatible with Intel CPUs or DDR4 DIMMs. Verify the exact processor against ASUS’s CPU support list and confirm any BIOS requirements before purchase.
PCIe and M.2 operating modes depend on the installed CPU. With compatible 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 supported M.2 speeds may differ.
Wi-Fi 6E operation on the 6GHz band depends on regional regulations and supported operating systems. The HDMI and DisplayPort outputs require a CPU with integrated graphics. Confirm case clearance and expansion-card dimensions before deployment.
Frequently Asked Questions
Q1: Which processors are compatible with the ASUS TUF GAMING B850M-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 model and 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?
It provides three M.2 sockets and four SATA 6Gb/s ports. PCIe operating modes vary by processor generation, so check the specifications for the selected CPU and drive configuration.
Q4: Does the motherboard include Wi-Fi and wired networking?
Yes. It includes Wi-Fi 6E and Realtek 2.5Gb Ethernet. Availability of the 6GHz wireless band depends on regional regulations and operating-system support.
Q5: Can I use a dedicated graphics card with this motherboard?
Yes. It has a primary PCIe x16 graphics slot. The slot supports PCIe 5.0 with compatible Ryzen 7000 and 9000 Series processors; Ryzen 8000 Series processors use supported PCIe 4.0 lane configurations.
Q6: Is this motherboard suitable for a compact gaming PC?
Yes. Its 24.4 × 24.4 cm micro-ATX form factor fits compatible micro-ATX and larger cases. Confirm case support, graphics-card clearance, cooling, and power-supply requirements before building.
