ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series processors. The PRIME B840M-A WIFI-CSM motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It’s designed to be Advanced AI PC-ready, offering the power and connectivity needed for demanding AI applications.
| CPU | AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors |
| Chipset | AMD B840 Chipset |
| Memory | 4 x DIMM slots, max. 256GB, DDR5 Supports up to 7600+MT/s (OC) |
| Integrated Graphics | 2 x DisplayPort 1 x HDMI™ port |
| Expansion Slots | AMD Ryzen™ 9000 & 7000 Series Desktop Processors 1 x PCIe 4.0 x16 slot (supports x16 mode) AMD Ryzen™ 8000 Series Desktop Processors 1 x PCIe 4.0 x16 slot (supports x8/x4 mode) AMD B840 Chipset 2 x PCIe 3.0 x16 slots (support x1 mode) |
| Storage | Total supports 3 x M.2 slots and 4 x SATA 6Gb/s ports AMD Ryzen™ 9000 & 7000 Series Desktop Processors M.2_1 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode) M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) AMD Ryzen™ 8000 Series Desktop Processors M.2_1 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode) M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4/x2 mode)* AMD B840 Chipset M.2_3 slot (Key M), type 2280 (supports PCIe 3.0 x4 mode) 4 x SATA 6Gb/s ports |
| LAN | 1 x Realtek 2.5Gb Ethernet ASUS LANGuard |
| Wireless & Bluetooth | Wi-Fi 6E 2x2 Wi-Fi 6E (802.11ax) Supports 2.4/5/6GHz frequency band Bluetooth® v5.3 |
| Audio | Realtek 7.1 Surround Sound High Definition Audio CODEC - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking - Supports up to 24-Bit/192 kHz playback Audio Features - Audio Shielding - Premium audio capacitors - Dedicated audio PCB layers |
| Full Manufacturer Specifications | |
| Brand | ASUS |
|---|---|
| Socket Type | AMD AM5 |
| Chipset | B840 |
| Memory Slots | 4 DIMM |
| Wireless | WiFi AX + Bluetooth |
| Form Factor | microATX |
