| Model |
PRIME B850M-A WIFI-CSM |
| News & Updates |
Visit ASUS Global Website for latest updates |
| CPU |
AMD Socket AM5 for Ryzen™ 9000, 8000, 7000 Series |
| Chipset |
AMD B850 Chipset |
| Memory |
4 x DIMM, max. 256GB DDR5, up to 8000+MT/s (OC), ECC/Non-ECC, Dual Channel, EXPO™, AEMP |
| Graphics |
2 x DisplayPort (8K@30Hz), 1 x HDMI™ (4K@60Hz) |
| Expansion Slots |
- Ryzen™ 9000/7000: 1 x PCIe 5.0 x16
- Ryzen™ 8000: 1 x PCIe 4.0 x16 (x8/x4)
- Chipset: 1 x PCIe 4.0 x16 (x1) |
| Storage |
- 3 x M.2 slots
- 4 x SATA 6Gb/s ports
- RAID support varies by CPU |
| Ethernet |
Realtek 2.5Gb Ethernet, ASUS LANGuard |
| Wireless & Bluetooth |
Wi-Fi 6E (2x2, 2.4/5/6GHz), Bluetooth® v5.3 |
| USB (Rear) |
2 x USB 10Gbps (Type-A), 2 x USB 5Gbps (Type-A), 4 x USB 2.0 (Type-A) |
| USB (Front) |
1 x USB 5Gbps (Type-C), 1 x USB 5Gbps header (2 ports), 2 x USB 2.0 headers (4 ports) |
| Audio |
Realtek 7.1 Surround Sound HD Audio CODEC, Jack-detection, Multi-streaming, 24-bit/192kHz |
| Audio Features |
Audio Shielding, Premium Capacitors, Dedicated PCB Layers |
| Back Panel I/O |
USB ports, DisplayPort, HDMI™, Wi-Fi, Ethernet, Audio jacks, BIOS FlashBack™ |
| Internal I/O Connectors |
Fan headers, Power connectors, M.2 slots, SATA ports, USB headers, RGB headers, TPM, etc. |
| Special Features |
ASUS 5X Protection III, Q-Design, Thermal Solution, EZ DIY, Aura Sync |
| Software Features |
Armoury Crate, AI Advisor, Driver Hub, GlideX, TurboV Core, CPU-Z, Norton 360, WinRAR |
| UEFI BIOS |
CrashFree BIOS 3, EZ Flash 3, EZ Mode, MyHotkey |
| BIOS |
256 Mb Flash ROM, UEFI AMI BIOS |
| Manageability |
WOL by PME, PXE |
| Accessories |
SATA cables, WiFi antenna, M.2 screws, Quick start guide, ACC Express key |
| Operating System |
Windows® 11, Windows® 10 64-bit |
| Form Factor |
mATX (24.4 cm x 24.4 cm) |