Youve spent hours tweaking settings, only to see crashes when the CPU spikes. The latest Ryzen 9000 series demands a board that can keep up, otherwise your gaming sessions end in lag and lost progress. ASUS delivers a stable, durable platform that handles high-speed DDR5 and PCIe 5.0 without overheating, so you can play, stream, and run AI workloads without interruption.
ASUS TUF GAMING B850M-PLUS II AM5 DDR5 PCIe 5.0 Micro-ATX Motherboard
This micro-ATX motherboard is built for gamers and creators who need reliable power for AMD Ryzen 7000-9000 CPUs. It supports up to 256 GB DDR5, offers three M.2 slots, and includes a 2.5 Gb Ethernet port for fast online play. The design uses military-grade components and an upgraded VRM to stay cool during long sessions.
Benefits
- Stable performance even under heavy CPU loads.
- Reduced crashes during marathon gaming or AI tasks.
- ASUS AI Advisor provides instant, voice-like guidance.
- Fast 2.5 Gb Ethernet keeps online latency low.
- Military-grade parts protect against wear and heat.
- Easy BIOS interface works for beginners and pros.
Features
- Socket AM5 for Ryzen 7000-9000 CPUs
- DDR5-5600 support, four DIMM slots
- PCIe 5.0 x16 slot for next-gen graphics
- Three M.2 slots, PCIe 4.0/5.0 compatibility
- 2.5 Gb Ethernet LAN port
- Realtek ALC1220P 7.1-channel audio
- Four SATA III connectors for HDD/SSD
- Three chassis fan headers, CPU fan header
Specifications
| Processor |
| Supported processor sockets |
Socket AM5 |
| Compatible processor series |
AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series |
| Processor socket |
Socket AM5 |
| Processor manufacturer |
AMD |
| Memory |
| Unbuffered memory |
Yes |
| Maximum internal memory |
256 GB |
| ECC сompatibility |
ECC & Non-ECC |
| Memory channels |
Dual-channel |
| Memory slots type |
DIMM |
| Number of memory slots |
4 |
| Supported memory types |
DDR5-SDRAM |
| Storage controllers |
| RAID levels |
0, 1, 5, 10 |
| RAID support |
Yes |
| Number of HDDs supported |
4 |
| Number of storage drives supported |
7 |
| Supported storage drive interfaces |
M.2, SATA III |
| Supported storage drive types |
HDD & SSD |
| Graphics |
| Parallel processing technology support |
Not supported |
| Internal I/O |
| Number of RGB LED pin headers |
3 |
| RGB LED pin header |
Yes |
| 12V power connector |
Yes |
| Number of COM connectors |
1 |
| EPS power connector (8-pin) |
Yes |
| Chassis intrusion connector |
Yes |
| Number of chassis fan connectors |
3 |
| CPU fan connector |
Yes |
| ATX Power connector (24-pin) |
Yes |
| Front panel connector |
Yes |
| Front panel audio connector |
Yes |
| Number of SATA III connectors |
4 |
| USB 3.2 Gen 2 (3.1 Gen 2) connectors |
1 |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors |
1 |
| USB 2.0 connectors |
2 |
| Rear panel I/O ports |
| DisplayPorts quantity |
1 |
| DVI-D ports quantity |
0 |
| HDMI ports quantity |
1 |
| VGA (D-Sub) ports quantity |
0 |
| Ethernet LAN (RJ-45) ports |
1 |
| USB 3.2 Gen 2x2 Type-C ports quantity |
1 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity |
0 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity |
3 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity |
0 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity |
4 |
| USB 2.0 ports quantity |
4 |
| Network |
| Wi-Fi |
No |
| Ethernet interface type |
2.5 Gigabit Ethernet |
| Ethernet LAN |
Yes |
| Features |
| Windows operating systems supported |
Windows 10 x64, Windows 11 |
| Audio output channels |
7.1 channels |
| Audio chip |
Realtek ALC1220P |
| Motherboard chipset |
AMD B850 |
| Motherboard chipset family |
AMD |
| Motherboard form factor |
micro ATX |
| Component for |
PC |
| Expansion slots |
| 3rd M.2 highest PCI Express generation |
4.0 |
| 3rd M.2 largest key size |
2280 |
| 2nd M.2 highest PCI Express generation |
4.0 |
| 2nd M.2 largest key size |
2280 |
| 1st M.2 highest PCI Express generation |
5.0 |
| 1st M.2 largest key size |
2280 |
| Number of M.2 (M) slots |
3 |
| PCI Express x16 (Gen 5.x) slots |
1 |
| PCI Express x16 (Gen 4.x) slots |
1 |
| PCI Express x1 (Gen 4.x) slots |
1 |
| BIOS |
| BIOS memory size |
256 Mbit |
| BIOS type |
UEFI AMI |
| Packaging data |
| Package weight |
1.65 kg |
| Package height |
67.5 mm |
| Package depth |
275 mm |
| Package width |
275 mm |
| Weight & dimensions |
| Depth |
244 mm |
| Width |
244 mm |
| Packaging content |
| Cables included |
SATA |
| Screws included |
Yes |
| Other features |
| Maximum internal memory |
256 GB |
